Chinese Satellites [Archive] - China Defence Today Forum

Dongfeng

01-03-2006, 08:42 AM

Apparently your teach knows quite a lot about Chinese military as well as piano! ;)

OK, time for some ABC:

(1) It is not unusual for spacecraft, either manned or unmanned, to change orbit during its flight. Space shuttle changes its orbit many times during its flight. So this has become kind of routine procedure for spacecraft. After China's ShenZhou manned spacecraft made a couple of orbit changing during their flight, there has been some reports by Chinese media claiming that this confirms China's ability to change the course of its ballistic missile warhead during its final flight stage, thus increasing the difficulties to intercept the warhead for the missile defence system. The reality may never know since it is unlikely for China to launch a ICBM and then publish its flight data.

(2) China does not have a plan at the moment to build any space shuttle. Also missiles do not need a space shuttle to change its flight route. Your teach got confused about this bit.

(3) Galileo is a new satellite navigation and positioning system comaprable to the U.S. GPS. You can find some very helpful informaiton about it at BBS website: http://news.bbc.co.uk/1/hi/sci/tech/4555276.stm.

The system is basically designed for civilian use, but with much higher accuracy (<1m) compared to the civilian signal of the GPS. So potentially it could be used for military purpose. China has the full right to use the Galileo signal, as many other coutries do. China was also invovled in some development work as well as investment in the Galileo project, but this does NOT mean China owns the system in any way.

China is also developing its own satellite navigation system but is decades behind US, Russia and EU.

patriot

01-03-2006, 05:59 PM

I don't believe that missiles changing directions was even true. It seems to me that it's another U.S propaganga in the "China Threat". Even if it was true, how would such a big military program be in a western paper. China was pretty good at making its military programs secret.

adeptitus

01-03-2006, 06:09 PM

i dunno if this is true but my piano teacher told me about this. he said he read a article that china has the ability to change the path of its missles when it is flying. the article said that the chinese goverenment will be puting up a space shuttle that in orbit will be able to control chinese missles flight path when it is need. so if this is true then would the american 'star wars project' be pretty uselesss then.

it also said that china and i think europeane countries will be putting up a GPS like thing consisting of 36 sattilites. this is said to be able to hit targets within one meter of the chosen spot. it also said that the american version of it can only hit within 10 meters. it says it is 10 years or something like that infront of the USA. is this stuff accurate???

o_O If your Piano teacher is referring to GPS guidance and mid-course correction, yes, the PLA has weapons with such capability.

Space shuttle in orbit? There is no Chinese space shuttle program.

There are 3 major GPS networks being maintained or sent to space. The US based NAVSTAR & Russian GLONASS use ~24 satellites, and the European Galileo has 30 satellites planned. China's own Beidou navigation system, a "minor" GPS network with geostationary orbit satellites, has only 4 satellites planned.

As for accuracy, I'll refer you to this article:
http://en.wikipedia.org/wiki/GPS
Satellite Navigation Systems can be used for determining one's precise location and providing a highly accurate time reference almost anywhere on Earth or in Earth orbit. The accuracy of the GPS signal itself is about 5 meters (16 ft) as of 2005 and has steadily improved over the last 15 years. Using differential GPS and other error-correcting techniques, the accuracy can be improved to about 1 cm (.4 in) over short distances.

WEN?

01-03-2006, 07:49 PM

i do believe that what Dongfeng said is the one my teacher was talking about. its the Galileo thing. also the chinese are doing this Galileo program along with European countries and the Americans were threatening them for giving china the tech. the americans are worried that china is getting all this high-tech stuff but none for themsleves even thought they are the ones ahead. so they say to Eurpoe we blow something up if u don't share. they also stopped a arms deal with china like this i think but Japan was also involved.

Mr_C

01-04-2006, 10:02 AM

Apparently your teach knows quite a lot about Chinese military as well as piano! ;)

(3) Galileo is a new satellite navigation and positioning system comaprable to the U.S. GPS. You can find some very helpful informaiton about it at BBS website: http://news.bbc.co.uk/1/hi/sci/tech/4555276.stm.

The system is basically designed for civilian use, but with much higher accuracy (<1m) compared to the civilian signal of the GPS. So potentially it could be used for military purpose. China has the full right to use the Galileo signal, as many other coutries do. China was also invovled in some development work as well as investment in the Galileo project, but this does NOT mean China owns the system in any way.

China is also developing its own satellite navigation system but is decades behind US, Russia and EU.

Yeah, one of the conditions that the Chinese made to the EU before they committed any money was that teh EU must allow chinese scientist to research and develop the system together. SO basically the Chinese will be able to get some technical know how on improving their own satellites.

Some one said something about satellites that stays in one spot.... well those satellites r classified as Geostationary satellites and has little military purpose at the moment because their orbit is around 27 000 to 37 000km from the surface of the earth. That is way to far to get super accurate measurements required for military purposes and civilian measurements of various things.

Galileo is built for civilian purposes... but the technology in it is pretty much the same for miltary purposes. Simply put.. the EU does not want to be completely reliant on the USA and wants to chip in teh business.

tphuang

04-17-2006, 10:53 PM

alright, I figure this is probably the best place to post this. I just found this on one of the Chinese forums. It actually describes DFH-3, which is China's currently most advance communication satellite.
http://www.sinodefence.com/space/satellite/dongfanghong3.asp
The article in the picture is actually describing DFH-3A, but you can read more from the underlined material.
http://www.cjdby.net/UploadFile/2006-4/20064171757869060.jpg
Make a note, it talks about future projects in the form of the 4th Beidou-1 satellite to be launched. It also mentionned about the Beidou-2 project, which will consist of 12 satellites.

tphuang

11-08-2006, 07:56 PM

this is probably one of the more important things to come out of Zhuhai, the announcement of the Compass (Beidou) navigation system.

I got some pictures.
http://img365.imageshack.us/img365/4486/beidouzhuhai06cv0.jpg
http://img362.imageshack.us/img362/4295/beidouzhuhai062yd7.jpg

news on this

BEIJING, Nov 2, 2006 (AFP) - China announced Thursday plans to
build a satellite navigation system that will include up to 35
satellites and be working in the Asian region by 2008, state press
said.
The system, called "Beidou", will include five geostationary
earth orbit satellites and 30 medium earth orbit satellites, Xinhua
news agency said.
Navigation services open to commercial customers will provide
users with positioning accuracy within 10 meters (33 feet), velocity
accuracy within 0.2 meters per second and timing accuracy within 50
nanoseconds, the report said.
No details on the costs of the system were reported.
It was also not clear how the Chinese system would rival the
American global positioning satellite system or the EU's Galileo
satellite navigational system which is expected to be built with
Chinese participation.
China would launch two "Compass" navigation satellites next year
as part of the Beidou project, Xinhua said.
The system is expected to cover China and parts of neighbouring
countries by 2008, before being expanded into a global network of
satellites, it said.

http://www.dnaindia.com/report.asp?NewsID=1061680

BEIJING: In an effort to end Western monopoly, China has started building its own Global Satellite Navigation System, 'Compass', which will also cover parts of neighbouring countries.

The planned network, also referred to as Beidou Navigation System, entails the launch of five geostationary and 30 mobile satellites.

China plans to launch two Compass navigation satellites at the beginning of next year. The system, which will provide highly accurate positioning and time references, will cover China and parts of neighbouring countries by 2008 before being developed into a global network.

The system will provide two navigation services. The Open Services is designed to provide users with positioning accuracy within 10 meters, velocity accuracy with 0.2 metre per second and timing accuracy within 50 nanoseconds.

The Authorised System will offer "safer" positioning, velocity, timing communications for authorised users.

China is willing to cooperate with other countries in developing its satellite navigation industry to allow the Compass system to operate with other global satellite positioning systems, the report said.

China has already joined the European Union (EU) and the European Space Agency's 3.5 billion-euro Galileo Project to develop a satellite-navigation system independent of the US military global positioning system (GPS) monopoly.

I guess important stuff
5 GEO satellites
30 MEO satellites (compared to 30 MEO satellites for Galileo)
for civilians, 10 m accuracy, 0.2 m/s accuracy (this is better than Glonass)
and for authorised users, higher accuracy.

tphuang

02-02-2007, 10:47 PM

great news, one more beidou satellite getting launched.
http://www.chinadaily.com.cn/china/2007-02/03/content_800453.htm

XICHANG, Sichuan - China successfully put a navigation satellite into orbit early Saturday from the Xichang Satellite Launch Center in southwest China's Sichuan Province.

The carrier rocket, Long March 3-A, blasted off at 0:28 a.m. ( Beijing Time). The satellite separated from the rocket about 24 minutes later.

Data from the Xi'an satellite monitoring center showed that the satellite had accurately entered its orbit.

It is China's fourth Beidou (Big Dipper) navigation experimental satellite in orbit. The previous three were sent in space on Oct. 31, 2000, Dec. 21, 2000 and May 25, 2003 respectively.

Experts said the Beidou satellite navigation experimental system is operating well and has played a significant role in cartography, telecommunications, water conservation, transportation, fishery, prospecting, forest fire monitoring and national security.

The fourth Beidou navigation satellite, serving as a backup satellite for the Beidou satellite navigation experimental system, may replace the first Beidou satellite, when necessary, continuing to provide all-weather and all-day navigation and positioning information.

Experts said China is establishing the Compass Navigation Satellite System on the basis of the Beidou satellite navigation experimental system. The compass system will in 2008 fully meet the demand of satellite navigation for clients in China and neighboring regions.

The Compass Navigation Satellite System will gradually extend to be a global satellite navigation and positioning system after network building and experiments, experts said.

The compass system will be mainly used for economic purposes, providing efficient navigation and positioning services in transportation, meteorology, petroleum prospecting, forest fire monitoring, disaster forecast, telecommunications and public security, among others.

China is one of the several countries in the world capable of developing such a system on its own.

The system can help clients know their location at any time and place with accurate longitude, latitude and altitude data.

The satellite and carrier rocket were developed respectively by the China Academy of Space Technology and China Academy of Launch Vehicle Technology, which are under the China Aerospace Science and Technology Corporation.

The launch represents the 95th flight of China's Long March series of rockets.

according to some on Chinese forum, this can be used as part of the Beidou 1 or Beidou 2 system. We will see.

Totoro

02-03-2007, 12:08 PM

Well, technology wise, there's a big diffrence from a satellite launched in 2000 and one launched in 2007. It seems logical this new one is one of advertised 5 GEO ones from beidou 2 network. It's also possible it is compatible with beidou 1 ones, to serve when needed until the new 5 become operational. I would guess 2008 is pretty safe for 5 GEOs, (because of whole national pride for olympics thing) but 30 non GEO ones could take another decade after that.

maozedong

02-07-2007, 09:20 PM

http://image2.sina.com.cn/jc/p/2007-02-07/U1220P27T1D430505F3DT20070207115325.jpg
[br]http://image2.sina.com.cn/jc/p/2007-02-07/U1220P27T1D430505F26DT20070207115617.jpghttp://image2.sina.com.cn/jc/p/2007-02-07/U1220P27T1D430505F318DT20070207115617.jpg
[br]http://image2.sina.com.cn/jc/p/2007-02-07/U1220P27T1D430505F319DT20070207115617.jpg

International pioneer 导报 reporter the blue wave sends from Beijing on February 3 the zero hour 28 minute, China uses "the Long March third armor" in the Xichang satellite launch center the launch vehicle, succeeds sends in the dubhe navigation experiment satellite the outer space. After approximately 24 minutes, star arrow separation. The Xi'an satellite observation and control center transmits the data indicated that, the satellite accurately enters prearranges the track. The satellite navigation enters strives for hegemony the pattern Country's the and so on US, Russia, England, France mainstream media and the Hong Kong and Taiwan media had reported in the first time this China succeeds carries on the satellite launch the news. The world consensus generally believed that, this symbolized China's dubhe satellite navigational system greatly advanced a step to front, forms America, Russia, Europe, center "four strongly strives for hegemony" on the satellite navigational system the pattern. It is reported, this China launches is the 4th dubhe navigation experiment satellite. The first 3 dubhes navigation satellite separately to October 31, 2000, on December 21 and on May 25, 2003 launches lifts off. The dubhe navigation experiment system movement until now works stably, the condition is good, already in the mapping, the telecommunication, the water conservation, the transportation, the exploration and the national security and so on many domains gradually plays the vital role. According to the department concerned people in charge introduced that, China is implementing the construction dubhe satellite navigational system, plans about 2008 to satisfy Chinese and the peripheral locality user to the satellite navigational system demand, and gradually expands for the whole world satellite navigational system. This system mainly will use in the national economic construction, for profession and so on China's transportation, meteorology will provide the highly effective navigation localization service. American GPS long-term monopoly The American Department of Defense started the GPS system from 1973 which implemented, was in the world the first whole world satellite navigational system, has monopolized the whole world in quite long period of time military and the civil satellite navigation market. GPS originally is specially uses in for the intercontinental missile navigation secret military system, obtained the actual combat application for the first time in 1991 Gulf War. Afterwards, in the Kosovo war, the Afghan war and the Iraqi war gives full play. From the Clinton time, this system starts to apply in the civil aspect. Presently moves the GPS system is composed by 24 work satellites and 4 spare satellites. US has obtained the huge economic using GPS, for many years has been selling the signal receiving apparatus aspect to earn the huge profit. Take 1986 as the example, at that time general precision GPS position finder price 50,000 US dollars, the high accuracy amounted to 100,000 US dollars. Now the price although has the drop, but also may calculate for 20 year GPS "quite abundantly the harvest". Take GPS as representative's satellite navigation localization application industry, has become one of eight big wireless industrial. The investigation appraisal which according to the American country public management research institute carries on indicated that, the GPS global sales volume by every year 38% speed growth, in 2005 the global GPS market has amounted to 31 billion US dollars. Since long ago, US provides to our country military is the pintpointing signal, provided to other users is added the disturbance low accuracy signal --in other words, on the Earth any goal accurate position, only had the American to grasp, other countries only knew "probably". When Gulf War, US also once set at the European Union various countries benefit not to attend to, a closure to European GPS service. "Four is strong" respectively has the fit and unfit quality In order to break American the monopoly, Russia spent more than 3 billion US dollars to build up own whole world satellite navigational system GLONASS (standard Luo river natrium Si). In 2002, European Union started "Galileo to plan", will put into service in 2008. In 2003, China and European Union have signed the agreement of partnership which concerned Galileo plans, at present the bilateral cooperation project had 14. In addition, the Chinese independent research and development dubhe satellite navigational system already made the significant progress. Looked from the present competition pattern that, GPS also is occupying the dominant position without doubt, but its superiority gradually is being substituted for by other 3 big systems. Looked from the technology and the application prospect that, four big systems respectively have the fit and unfit quality, if GPS wins in maturely, Galileo wins fine in, then the standard Luo river natrium Si's greatest value lies in the antijamming ability to be strong, but China's dubhe satellite navigational system superiority lies in the interaction and openness. Compares with GPS, the Galileo system has the superiority in many aspects, the example if the satellite quantity reaches 30, its satellite orbit position is higher than GPS. Galileo may provide 3 kind of types for the ground user the signals to supply the choice, including the free signal, the encryption also must pay fee the signal, the encryption which can use also may conform to the higher request signal. In addition, the Galileo satellite positioning system signal most high accuracy GPS is higher than 10 times, the definite object erroneous scope in 1 meter. Just like the concerned expert said that, "Present GPS only can find the street, but Galileo actually can find the garage the gate." But Russia's standard Luo river natrium Si are composed by 24 satellites, also is responsible by the military to develop and the control military and civilian dual purpose navigation localization satellite system. Although its pointing accuracy GPS, Galileo is slightly lower than, but its antijamming ability actually is strongest. China independently develops the production the dubhe satellite navigational system not only to have in any time, any place for the user determined its is at geography latitude and longitude and altitude above sea level ability, moreover has the innovation in the localization performance. The dubhe system with other system biggest differences, lies in it not only to be able to cause the user to know own in the position, but also may tell the others the position, specially is suitable to needs the navigation and the migration data communication place. In addition, China also devotes to enhances the dubhe satellite navigational system and other whole world satellite navigational systems compatibility, the promotion satellite positioning, the navigation, the time service function application.

http://jczs.news.sina.com.cn/p/2007-02-07/1153430505.html
translate by bable fish

Jiang

02-08-2007, 01:51 AM

Dongfeng

02-08-2007, 07:53 AM

Schumacher

02-08-2007, 09:22 AM

It seems as China moves to a new generation of indigenous sats, it's now experiencing multiple failures. Similar to what their launch vehicles experienced in the 90s. Hopefully, they'll learn & recover to achieve the reliability of the launch vehicles now.

BLUEJACKET

02-08-2007, 06:02 PM

It looks like they have killer satellites after all, not just missiles!-
CHINA’S SPACE WARFARE STRATEGY
Although ostensibly carried out for “peaceful purposes,” China’s unexpected January 11th anti-satellite interceptor test is causing growing concern in the United States. Defense News (February 5) reports that new details indicate that China’s secretive anti-satellite (ASAT) program is far broader and more sophisticated than originally understood. According to the industry weekly, the January test is now believed to have been preceded by at least one, and possibly two, other (unsuccessful) ASAT attempts. The test, and its obvious military implications, have brought into focus China’s practice of populating the atmosphere with spacecraft “in orbits that bring them close to key U.S. satellites” but which “don’t appear to be conducting any particular mission.”
A new paper commissioned by the U.S.-China Economic and Security Review Commission, meanwhile, has confirmed suspicions about the likely focus of China’s growing space warfare capabilities. In the January 19th study, entitled “An Assessment of China’s Anti-Satellite and Space Warfare Programs, Policies and Doctrine,” China specialist Michael Pillsbury notes that a robust Chinese ASAT program, apparently designed specifically with the U.S. in mind and geared toward “preemptive strikes,” has been advocated in PLA military circles for at least a decade.
from Missile Defense Briefing Report No. 216, February 8, 2007 (http://www.afpc.org/mdbr/mdbr216.shtml)

maozedong

02-08-2007, 10:10 PM

I believe it, this saying already reported many years ago.
this report seems from US official authority, they reported China and Russia both research killer satellites long times.
that is why US produce space white page announced: US space right and adventage should be protected absolutely,if necessary US may stop the enemy country's satelittes enter into space.
after no longer China tested antisatelittes.include this time BD navigation sat launched, every body can see the space millitary contest already come.
should we discuss this in this thread? or go to another thread-- China test ASat?

BLUEJACKET

02-09-2007, 04:47 PM

ASAT and SATellites are the 2 sides of the same coin- but since that article talked about ASAT satellites I chose to post it here.

David_Cameron

02-09-2007, 06:42 PM

maozedong

02-09-2007, 10:28 PM

1. Chinese Satelittes are Chinese Combat Satelittes with Laserguns and, or Missiles ?

2. Have anothers the Nations if France, Japan, India, Canada, Russia, Australia or Great Britain Combat Satelittes with Laserguns and, or Missiles ?
The President of France has talke, say strange samething over it Iranian Missiles after 200 meters to will be destroyed before this of Iran air space leave !

this time China test anti satelittes, widdly speculae is missiles with lasergun,but US military investigate autuority has no more detail report about this,you may watch China test ASAT thread,there are many disscustion talking about this.
about chinese combat satelittes whth lasergun that is killer satelittes which just we talked before.
except Russia,I don't think any country of above have the capability of comat satelittes with laserguns, about missiles with laserguns I am not sure France and UK have this capability or not, because this is their defence secret.India and Japan still poor missiles technology.Canada and Australia even have no this plan, I think.
Iran.... intresting.
any body like to make post more detail that is grateful.

Schumacher

02-10-2007, 12:09 AM

Violet Oboe

02-10-2007, 01:38 AM

Military rivalry in space is indeed heating up in recent years and the major powers US, Russia and China are stepping up their respective efforts for space dominance. The chinese ASAT tests are of certain relevance but Russia´s vigorous activities have been more successful in regard of establishing some kind of startegic counterweight against the mighty capabilities of US Spacecommand. The russian space forces have reestablished a fully functioning positioning system (GLONASS), several IMINT and ELINT satellite systems, mil comsat systems and also a functioning orbital early warning system (+ earth based counterpart) since 2001 and consequently Russia´s situational awareness and and freedom of action should not be underestimated.

In the final years of the cold war the USSR made strident efforts in total secrecy to counter SDI by developing a giant strategic satellite called POLYUS. After being brought into orbit by the mighty ENERGIJA launcher (more powerful than Saturn V, 130 ts LEO capacity) this 37 m long and 88 ts heavy orbital battle station would have employed nuclear space mines as main weapons and a radar controlled special gun for self defense. Unfourtunately the first and only test on 15 May 1987 was unsuccessfull since after a flawless lift off by Energija the orbital insertion maneuver went wrong and the big one crahed after one orbit into the south pacific (no nukes were actually on board in this first test). Although the USSR soon collapsed and also the whole SDI project faded into oblivion this episode illustrates how dangerous a military space race can become if there is no political will to limit an escalation. Battle sats with lasers and even nukes in low earth orbit are ultimate weapons able to destroy a whole nation in a couple of minutes and the potential for miscalculation on all sides (may be a threeway race between US, Russia and China is already emerging) is horrific. (A decade from now India may also be in a position to enter this struggle!)

Additionally making bad things worse there are currently several regional powers who are intent to develop indigenous spacelaunch capabilities: Brazil (three big explosions, the last killing 21 people have cooled their enthusiasm), South Korea (they have got russian tech of the ANGARA launcher, quite modern and effective!), North Korea (the Norks have made already two failed attempts), Pakistan (unclear whether China will assist them substantially) and of course Iran. The persians are working under a cloak of secrecy and disinformation but they will be probably the newest member in the space club absent a surprise by North Korea. The launch of a small iranian experimental sat is expected by some experts during ´07 making Iran after the USSR, US, France, Japan, China, UK, India and Israel only the ninth country able to orbit their own sats with their own launcher from their own base.

Iran will take great pride in achieving that feat as the first muslim country and her prestige will be enhanced but their capability will be quite modest for years to come; nevertheless more and more countries will have independent access to space and this fact will determine the evolving new global strategic landscape. China will have to watch out since India has better access to western tech and has to redouble her efforts if she wants to retain her position!

Scratch

02-10-2007, 10:09 AM

I don't think that chinese, or any other countries, current sats are equiped with lasers or missies. The implicatons would be disproportional. And those weapons systems are currently probably not yet small enough.

About that Iranien missiles and french president thing: In an informal press meeting, when the topic came to the threat a nuclear armed Iran would be, Chirac just made a lax statement because he didn't expect to be quoted there. He said something like: a nuclear Iran wouldn't be that dangerous to the international community because if it really should launch BMs then, these would be detected and the international communities military would pulverize Iran before it's own missiles leave it's airspace.
When it became public there was some confusion and Chirac restated that point and said no military action, but diplomany, no nukes for Iran pla pla pla ...

But: :off

Gollevainen

02-10-2007, 10:39 AM

Sorry to all, David_Cameron seems to be some sort of pothead or otherwise more into inner space than outerspace person:rolleyes: :rolleyes: ....I wonder Why I haven't banned him yet, but it would be corrected...

You wouldnt propaply know it as you all are so new in here, but all sort of lasers and killer satelites have really nasty echo howling in our vaults....So please no more talk of this sort of sillyness.

StevenVogler

02-10-2007, 03:14 PM

http://www.n2yo.com/?s=30323

It seems to be doing some orbital maneauvers right now. If there's any problem, doesn't look like it's with the power unit.

Combat Satelittes with Mini-Nuclear-Reactors-Engines or Solar-Engines, Solar-Cells-Engines and Laserguns and Missiles !
It also Satelittes with Mini-Nuclear-Reactors-Engines, which was sent to the sowing, satrun run !
Solar-Engines, Solar-Cells-Engines have more Energy, Power, Efficiencies in space than, as on the earth !

I think that CHINA or JAPAN can to build on Combat Satelittes for self-defense! CHINA and JAPAN have the last 40 years more, most to reaching, than that the western countries in the last 4000 years ! Problem is only, that but CHINA and JAPAN are Enemies, Opponents, over this can western countries do are pleased this and work for produce problems everywhere in the world !
I think that CHINA is mordernes country and wants this to also remain, and become even more mordernes ! Western countries will go back into the stone time ! In all western countries takes anti-technology-activists-groups that will go back into the stone time, this is a problem, but China is not none the problem, a threatening now gene will become !
If I would be scientist, will new technologies for military defense, energy produce, energy supplying, environmental protection, environmental restore, Medizi supply, transportation develop for CHINA or JAPAN to rather develop, because CHINA or JAPAN will would be to use ! western countries do block-guessed/advised these then landlord-crept uses and further to develop, into that western of countries this work and forbidden, or stated that, goes not !

CHINA OR JAPAN IS ON THE CORRECT WAY, BUT THOSE WESTERN OF COUNTRIES ON THE WRONG WAY !

Gollevainen

02-10-2007, 04:46 PM

Ok no more killersatelites Or I close the thread! This the last warning to your all!!!!:mad: :mad:

Violet Oboe

02-10-2007, 10:24 PM

China will establish a fourth launching base on Hainan island becoming operational in 2010 and the new base will be the home for the CZ-5 launchers of the 25ts LEO class. Rumours are also around that after 2010 the launches for the manned program will be relocated from Jiuquan to Hainan.

Maintaining four space bases 1.Jiuquan (manned + military) 2, Xichang (civil and mil GEO), 3. Taiyuan (mil polar orbits) and 4.Hainan (new heavy launcher, perhaps future moon launch base?) is certainly a heavy commitment only justifiable if China expands her annual launches from 6-8 to around 12-18. The next few years will be very busy for chinese rocketeers and we may see in the coming five years as many launches as in all of the last twenty!:coffee:

Hopefully the major powers (US, Russia, China) will negotiate a new space treaty limiting and controlling the use of Near Earth Space after a new administration has taken over in Washington in ´09. Things will probably get badly out of hand if an instable three or even four way (India!) arms race emerges in the next decade! :nono:

maozedong

02-11-2007, 04:26 AM

The Chinese official media Wednesday (on 7th) reports said that, China has chosen a location in Hainan Island, prepares to establish the China fourth satellite launch center in there. On the other hand, the world consensus generally believed that, China's succeeded on the other day the launch BeiDou navigation experiment satellite, symbolized America, Russia, Europe, center four strongly strove for hegemony on the satellite navigational system the pattern already to form. Hainan Province agent Governor Luo Baoming said that, the new satellite launching base will construct is leaving the Hainan provincial capital seaport about 60 kilometers RunChaung. Xinhua News Agency reports said that, RenChang the satellite launch center also will include an outer space subject scientific park, a rocket assembly plant and a control center. The new selected location has the important practical value China at present altogether has three satellite launch center, in Sichuan Xichang, in Gansu Jiuquan, but also some in Shanxi provincial capital Taiyuan. Early time some reports said that, the Hainan comparatively backward economy mainly is relies on the tourism and the agriculture, therefore, the Hainan authority to the central authorities solicit, hoped central can elect the new satellite launch center location in Hainan, thus stimulates local the economy. At present the Hainan government already decided on the visit RenChang satellite launching base the admission ticket price, a ticket price reached as high as 500 Yuan. China military expert, American gram 莱蒙 research institute Asia center researcher Lin Changsheng when accepts the interview said that, China establishes the new satellite launch site in Hainan to have the very vital significance. He said, although China passes in Sichuan, Gansu and Shanxi respectively has a satellite launch site, but these three launch sites all have several disadvantageously place. One is they all occupies on the high track, the launch satellite rocket power was inferior to the low track is strong; Two is because the Chinese present launch vehicle more does in a big way, all has no way in the inland very many bridges culvert to pass, the transportation is inconvenient; Three is 11,000 launches appears the breakdown, the inland population density is high, when rocket whereabouts can cause the local resident to be injured. Lin Changsheng believed above, can avoid the question in the Hainan establishment satellite launch site. He said that, "first, Hainan approaches the equator, the earth rotation kinetic energy quite is strong, therefore the rocket may launch with the same fuel launch satellite the satellite high, but is not good in the high track; Second is transports conveniently, it may through the sea transportation, not the bridge, the culvert influence; Third, after it launched arrived the sea sky, if has been defeated also is falls on marine, could not to the inhabitant which launched under the track pose the threat. Therefore, China has the very big benefit in the Hainan establishment rocket launching base. The "China advances into the satellite navigation four to be strong On the other hand, this February 3 0 28 minute, China launch vehicle successfully delivers in the Xichang satellite launch center with "the Long March third armor" the BeiDou navigation experiment satellite the outer space. The Xi'an satellite observation and control center transmits the data indicated that, the satellite accurately enters prearranges the track. Country's the and so on US, Russia, England, France mainstream media and the Hong Kong and Taiwan media rapidly reported the Chinese this success launch satellite news. The world consensus generally believed that, this symbolized China's BeiDou satellite navigational system greatly advanced a step to front, forms America, Russia, Europe, center four strongly strives for hegemony on the satellite navigational system the pattern. China military expert Lin Changsheng believed that, this kind four strongly strives for hegemony the pattern view to make the sense, because before this dubhe satellite launch, China has already launched four BeiDou navigation satellite, these satellites belong to the first generation, they with American, Russian and Europe's satellite compare also have the very big disparity, because they also pause in the high track and the region use stage, only can in the Asian and Pacific area navigation. Lin Changsheng pointed out that, this secondary emission BeiDou satellite in the technical stratification plane already with America's, Russia, Europe's satellite belonged to a scale. He said that, "recently launched this new BeiDou satellite was the second-generation, also was BeiDou-2. The BeiDou-2 satellites are similar to American and Russia's satellite, belongs globally, also is the low track. Then, this satellite if experiments successful, new BeiDou-2 on such form the global character like GPS to guide Chinese international pioneer 导报 to report said, looked from the present competition pattern, US develops in the world first whole world satellite navigational system GPS or occupies the dominant position without doubt, but its superiority substitutes for by Russia's standard Luo river natrium Si and European Union's Galileo as well as China's BeiDou satellite navigational system. Looked from the technology and the application prospect that, four big systems respectively have the fit and unfit quality, if GPS wins in maturely, Galileo wins fine in, then the standard Luo river natrium Si's greatest value lies in the antijamming ability to be strong, but China's BeiDou satellite navigational system superiority lies in the interaction and openness. http://bbs.news.sina.com.cn/?h=/g_forum/00/03/01/view.php%3Ffid%3D15243%26tbid%3D5347&g=1
translate by babel fish

maozedong

02-12-2007, 04:31 PM

There has been speculation on Chinese Internet that the BD navigation satellite lauched on 03/02 is not working properly. The power unit onboard the satellite failed to start. This has not been confirmed yet but I guess that the ground control is trying whatever they can to fix the problem, though looking at previous similar failure the chance is very slim.

If this is true, it would be two satellite failure in a row after the failed DFH-4 last year

三、北斗1D出了什么问题

　　上次鑫诺二号是在最后一步精确定位时出的问题，据说是太阳能帆板二次打开出了故障。

　　这次更惨，竟然在同步转移轨道上就挂了！

　　静止卫星从发射到定点成功的总时间有长有短，８天１０天不算什么。但作为需要四次转轨的北斗二号，这么多天还在同步转移轨道上转悠，那就已经没戏了。网友们从第四天开始担心，从第五天开始骂娘，还是有一定道理的。

　　官方没有任何消息。小道消息说是电源系统故障，但太阳能帆板已经打开。我们不知是否真实，只能说没看出这消息与观察到的情况有什么矛盾之处。

　　以前我们出过姿态失控问题，但只要有电有燃料，卫星总是有救的。正常情况下是地面发指令而卫星自主动作，如果不行可以切换为星地大回路的控制方式，把它给稳下来。但现在这么多天过去，应该能想的招都想了，居然没解决问题，恐怕不是简单的姿态控制问题。

this is the article speculate BeiDou-2 navigation satelite not working properly.
it says BD-2 should change the track 4 times in space but it can not do it.
the sources speculat power unit onboard has problem.

Gollevainen

03-30-2007, 06:12 AM

Ok....Did I just said, No more killer-satelites with laser guns:mad: :mad:

One last warning, or I will close the thread!!:nono:

Schumacher

03-30-2007, 07:45 AM

There're 'talks' that BD-1D has just recently moved to GEO after being stuck for more than a month in GTO. Norad tracking has stopped so not much is really known.

CHOW YUM WANG

04-05-2007, 04:41 AM

kickars

04-05-2007, 05:57 AM

Man, if I were you, I would delete this comment immediately. Just in case you didn't realise this is a English forum. So please type English next time. And also if you've read some of the previous threads, you would've known people on this forum only use normal size and colour! :nono:

Schumacher

04-11-2007, 06:45 AM

Not a bad day at all for Chinese space programs.
First, the launch of 'Ocean 1B', an oceanic survey sat.
Then, finally, official words that the GPS sat 'Big Dipper 1D' or Beidou-1D has been saved & is functioning well. BD-1D is said to have suffered solar panels malfunction soon after launch in Feb, resulting in it being stuck in GTO for more than a month.

http://www.jongonews.com/articles/07/0411/12084/MTIwODQs9TO2kWa.html
http://news.sina.com.cn/c/2007-04-11/091112750496.shtml

Schumacher

04-13-2007, 08:55 PM

Few days after 'saving' BD-1D, China launched another GPS sat. This is supposed to be their 2nd generation/different series from BD which is called 'Compass'.

http://www.upi.com/NewsTrack/Science/2007/04/13/china_launches_navigation_satellite/

United Press International

United Press International®
News. Analysis. Insight.™
NewsTrack - Science
Published: April 13, 2007 at 5:36 PM
China launches navigation satellite
BEIJING, April 13, 2007 (UPI) -- China Saturday announced the launch of its "Compass" navigation satellite which will begin service next year.

The official Xinhua news agency said the satellite, designed to serve customers throughout China and neighboring countries, was put in orbit by its carrier rocket Long March 3-A after blast off from the Xichang launch center in southwest Sichuan Province.

The report said the "Compass" system will provide navigation and positioning services in the areas of transportation, meteorology, petroleum prospecting, forest fire monitoring, disaster forecast, telecommunications and public security.

China said it plans to launch more such satellites in the coming years.

fishhead

04-13-2007, 09:32 PM

Yeah, they launched a new BD today, just like some guy said a few days ago.

Next is the new ASAT test, not sure US reports it or not. Last time some space hobbyists found it out.

New BD update:

This is the first sat of new generation BD, it goes at the orbit of 21650km high. If no problem found in the test, Chinese new BD system will enter the batch launch in 2008.

The new generation BD will provide global coverage, starting from the regional coverage. Besides the traditional GPS function, it will provide real-time communication and tracking capabilities, which means the command center can track troop's movement, down to a soldier level, if they want.

fishhead

05-13-2007, 03:17 PM

Today, China launched its new generation communication satellite for Nigeria. It's the first combo package(launch+sat) China sells. The new sat uses the new platform DFH-4.

The first DFH-4 platform sat, Sinostar-2, was launched last year but failed.

China launches communications satellite for Nigeria

XICHANG, Sichuan Province, May 14 (Xinhua) -- China on early Monday morning launched a communications satellite for Nigeria, the first of its kind in Africa and the first time a foreign buyer has purchased a Chinese satellite and its launching service.

The carrier rocket, Long March 3-B, blasted off from Xichang Satellite Launch Center in southwest China's Sichuan Province at 0:01 Monday and the northwest Xi'an Satellite Control center said the satellite had entered orbit accurately.

The Nigerian Communication Satellite, or NIGCOMSAT-1, is a super hybrid geo-stationary satellite designed to operate in Africa, parts of the Middle East and southern Europe.

The Nigerian government delegation present at the launching ceremony here include the Minister of Science and Technology and several other high-ranking officials.

The entire launching process and the ceremony was broadcast live from China by the Nigeria Television Authority.

Experts estimate that the satellite program will revolutionize telecommunications, broadcasting and broadband multimedia servicesin Africa.

It will create more than 150,000 jobs for Nigerians, save broadband users more than 95 million U.S. dollars a year, as well as providing Internet access to remote rural villages, and save more than 660 million U.S. dollars in phone call charges.

It is also expected to play key roles in e-commerce, improving government efficiency and promoting the development of the digital economy in Nigeria and throughout the entire African continent.

Hammed Rufai, managing director of the NIGCOMSAT-1 project, said the satellite would help Nigeria break free from its over-reliance on oil trade and transform itself into a knowledge-based economy.

A Nigeria space official earlier described the launch of the NIGCOMSAT-1 as "a monumental achievement for Nigerians" and "a beginning of economic and technological emancipation" of the entire African continent, Nigeria's Business Day reported last week.

The satellite will change positions in orbit until it is finally fixed at a longitude of 42 degrees east. It is expected to be put into use by Nigeria before the end of the year and has a lifespan of 15 years.

The satellite will be monitored and tracked by a ground station to be built in Abuja, the capital of Nigeria, by Chinese firm Great Wall Industry Corporation, and a ground station in Kashgar, in northwest China's Xinjiang Uygur Autonomous Region.

The satellite's ground facility in Abuja "had the potential of making Nigeria a major traffic hub in the west and central African region" and will prompt Nigeria and neighboring countries to "expand their switching facilities to be able to handle international traffic", according to a Nigerian communication official.

The Chinese company will offer support services and training for Nigerian technicians.

China was awarded the deal in 2004 after it outbid 21 international rivals to secure the 311 million U.S. dollar deal.

The satellite and carrier rocket were developed by the China Academy of Space Technology and China Academy of Launch Vehicle Technology, both under the China Aerospace Science and Technology Corporation.

The launch represents the 98th flight of China's Long March series of rockets.

The satellite represents China's wish to cooperate with developing countries in the peaceful use of outer space and to promote a closer relationship between China and African countries, observers say.

China has signed several cooperative contracts offering commercial launching services for foreign satellites, said an official on space development, citing a similar satellite contract with Venezuela in November 2005 and adding that China has been commissioned to send about 30 foreign satellites into space.

Schumacher

05-14-2007, 10:31 AM

It seems this is the first comm sat for Africa. I think the more affordable Chinese tech is definitely more suitable for the developing world.
Now, all we have to do is wait for the accusations, from the usual suspects, that China's plan is to corrupt Africa with negative influences flowing from the internet & telecomm that this sat will provide. :)

http://allafrica.com/stories/printable/200705140044.html

allAfrica.com

Nigcomsat-1 Goes Into Orbit

This Day (Lagos)
NEWS
14 May 2007
Posted to the web 14 May 2007

By Oke Epia
Abuja

Nigeria made history yesterday in faraway China when she launched her communication satellite, aptly called Nigerian Communication Satellite, (NIGCOMSAT-1) as the 20-transponder mass successfully went on the 20-30 minutes trip into orbit.

First in the continent of Africa , the satellite launch, which was witnessed by top Nigerian officials, has been described as an impressive feat by President Olusegun Obasanjo, according to a statement by Mr. Felix Ale, Head of Corporate Affairs and Media at the National Space Research Development Agency (NASRDA).

The technology is expected to provide reliable communication satellite services to subscribers in

Nigeria and the continent, including those in the Diaspora.

Ale described the excitement at the launch site as 'electrifying', noting that the Director-General of NASRDA, Professor Robert Ajayi Boroffice, had immediately informed Obasanjo of the success of the event.

According to him, "Boroffice has also called Obasanjo to inform him of the success of the launch. The President was impressed and full of praise for NASRDA.

Ale said that the NASRDA boss described the launch as a monumental technological leap and victory for Africa .

"With the successful launch of NIGCOMSAT-1, technological revolution in Africa has started as nobody can stop it."

Among Nigerian officials present at the launch were the country's Ambassador to China , Ambassador J.O Coker.

He also reported that his Boroffice thanked Obasanjo for the confidence reposed in the Agency to embark on the project.

The NigcomSat-1 was launched into geosynchronous orbit from the Xichang satellite launch centre.

The NASRDA also said in a statement that the technology is a super hybrid geo-stationary satellite designed to operate in C, KU, KA and L bands and wholly owned by Nigeria .

NigcomSat-1 has Africa, part of Middle East and Southern Europe as its footprint, the release explained.

Copyright © 2007 This Day. All rights reserved. Distributed by AllAfrica Global Media (allAfrica.com).

fishhead

05-14-2007, 11:03 AM

The pressure is extremely high for Chinese since Sinostar-2 solar panel failed to open, that's supposed to do the verification of the new DFH-4 platform.

BTW, the sat is very good for the Africa since their geographical condition makes the fiber very expensive, laying them in tropical forest or desert is not a easy thing. Nigeria can even make a few bucks by renting part of the sat transponders out.

It's said Sinostar-3 will be launched this month also with DFH-4 platform.

Schumacher

05-14-2007, 07:41 PM

The highlighted parts below offer some clues as to why Africa-China cooperation is not well-received in some quarters.

http://www.jongonews.com
Nigerians look up to new satellite
May 15, 2007 04:11 Beijing Time

Nigerian stakeholders in Information and Communication Technology (ICT) are optimistic that Sunday's launch of the Nigeria Communication Satellite (NigcomSat-1) will halt capital flight.

In a random sampling of opinions on the project launched in China, the stakeholders posit that NigcomSat-1 will change the face of communication in Africa.

President of Nigerian Internet Group Larne Ajayi said the satellite would reverse the status of Nigeria from an importer to exporter of international bandwidth.

Nigeria is spending more than 10 million U.S. dollars annually on the importation of bandwidth from Europe and America to facilitate Internet access, telephony and broadcasting in the country, he said.

Ajayi said with the satellite in orbit, Nigeria had emerged as real time player in the global ICT industry as it would now sell bandwidth and other accessories to Africa, Europe and America.

He said the development had confirmed the status of Nigeria as a giant on the African continent, noting that "Nigeria achieved a feat that the whole of Africa has been battling to achieve in the past 10 years."

"RASCOM, a communication satellite initiative of African countries has been on the drawing board for the past 10 years but within three years Nigeria was able to launch its own satellite," he said.

Executive Vice-Chairman of the National e-government strategies, Dr. Olu Agunloye described the launch as a demonstration of government's political will to ensure Nigeria became a major player in the ICT industry.

"The biggest achievement in the launch of the satellite is being able to take the political will and step to do what most developed countries wish we have not done," he said.

Agunloye said with government business going on-line and the introduction of e-commerce, e-trade, e-health, e-banking and the deployment of Internet services across the country, a lot of bandwidth would be consumed at a little cost.

"A lot of foreign exchange will now be saved from the deployment of the various ICT tools and products nationwide," he said.

He was optimistic that with NigcomSat-1, Nigeria would benefit from the global ICT fund as it would become a major player in the new tool of global communication.

Nyinbi Odero, an ICT expert, said the launch of the satellite would result in a tremendous boom in the nation's communication sector.

Odero said in Nigeria, which hitherto relied on foreign nations for the acquisition of bandwidths and other transponder that aid communication, would now turn to cheap and quality alternatives.

"One of the greatest significance of the launch of NigcomSat-1is that it will reduce Internet cost and enhance its penetration and access," he said.

Odero, who is project manager with the Bureau for Public Sector Reform, called for the exploration of public-private-partnership arrangement to maximize the use of the satellite infrastructure.

NigcomSat-1 was launched into geosynchronous orbit from the Xichang satellite launch center in China on Sunday. NigcomSat-1 is a super hybrid geostationary satellite designed to operate in C, KU, KA and L bands and wholly owned by Nigeria. It has Africa, part of Middle East and Southern Europe as its footprint.

The satellite, which was designed, built and launched by the China Great Walls Industry Corporation, was intended to meet the information and communication technology needs of Africa.
This article is from: http://www.jongonews.com/articles/07/0515/15343/MTUzNDMVgX6m5Ze.html

scorpioking

05-15-2007, 05:07 PM

Paying much lower cost, a lot of developing countries can get products they want but can't efford from China, it makes them feel that their resources become more valuable compared with the price offered by westerner. I believe it is fair to say China is not colonizing Africa but offering a different options to African.

待命5月发射的三颗星除了西昌27基地的尼日利亚星和鑫诺三号，另一颗是在酒泉，就是20基地，不是之前说的太原25基地。

三颗星顺序：
1 尼星西昌东四平台
2 XXX (以当时报导的名称为准) 酒泉新平台首发星
3 鑫诺三号西昌东三平台

具体日期......不出意外都会在5月升空
http://www.wforum.com/china/posts/1103021579.html

3 satelites will be launched in May, Nigerian one is the first, following by Sino 3 and another one (not mention the name)

fishhead

05-16-2007, 11:39 AM

Not sure if anybody noticed this news:

吉林日报讯（记者孙春艳）由中科院长春光机所承担的高分辨率航天光学遥感器项目验收评审会，近日在北京召开。评审委员会认为：长春光机所研制的高分辨率航天光学遥感器，采用了离轴三反光学系统方案，实现了长焦距、大口径、大视场、高分辨率成像；突破了大口径SiC离轴非球面加工检测、计算机辅助装调等一系列关键技术，使我国成为世界上继美、法之后少数几个掌握高分辨率光学遥感器技术的国家。
长春光机所取得这样的重大突破，得益于多年的技术积累和大胆创新。该所科研人员充分利用在光学遥感器研制中多年积累的基础和经验，攻克诸多技术难关；在项目研制过程中，科研人员大胆采用了国际先进的离轴三反光学系统，实现了总体性能指标的优化。

China made a break through in manufacturing off-axis, 3-mirror space telescope, esp the large diameter non-sphere SiC lens.

The news said it's after US and France, among the few matering this technolgy. Probably means that will psuh Chinese spy sat resolution well beyond meter level.

szbd

05-16-2007, 11:34 PM

It's called "Three-Mirror Anastigmat". It can cancel all aberrations (light from the same point of object passing different part of periscope can concentrate at the same point), observe wide field, unvignetted (no leak of light, that is no blur), flat focal plane (light of different color will concentrate on the same focal plane).

Yes, the resolution of Chinese spy satelite is going to 0.1m.

RedMercury

05-17-2007, 12:20 AM

Curiously, a Google search indicates it is patented :D Oh noes, they will sue Chinese military intelligence... But anyway, what's the cutting edge resolution now? How many generations is TMA behind?

szbd

05-17-2007, 01:00 AM

TMA is the cutting edge technology. But the actual resolution depends on manufacture detail. Also the actual shape of the mirrors. The best resolution now should be 0.1m, if those bloody americans didn't lie.

balance

05-19-2007, 02:29 PM

Hi,

Just wonder about Chinese spy sattelites! Do they have the capability that the US has for space-based recoinassance? We heard how US intelligence can track the satellite launched by China from their own spy satellite, and so they knew that CHina has attempted several times before finally succeeding to destroy one of its old satellites. It means that US has the real-time spy capability.
Does China have the same? Can they, like US, track the movement of troops or artilleries, as far as the continental US (not just the neighboring countries)?

Your response is highly appreciated. And if you have any reference in SD, please show me where.

Mod's note, balance we have a sattilite thread. No need to open a new one

fishhead

05-19-2007, 07:35 PM

This is the area pretty well guarded. China for sure has the spy satellites, but publicly they never acknowledge it, all sats are for civilian purpose in Chinese news. Each military sat has two names, one for public news release and the other used by military circle.

I haven't seen a single high resolution sat photo by now released by Chinese. I saw a page of internal document scaned by somebody mentioned that the planed field combat support sat has a resolution of 0.3m. At least at two times I read the local Chinese news that officials use the sat to monitor drug dealers growing opium in remote and mountain area, and sent law enforce people to destroy them, one place mentioned it's domestic sat. The public report says Chinese can make SiC lens with the biggest diameter of 0.8m, while commercial google earth level sat has 0.6m lens. People at the Chinese web sites identified that China has optical, IR and radar type military spy sats, they track them down with both civilian and military names.

That's all I know.

fishhead

05-19-2007, 07:43 PM

Like this sat

civilian name: Yaogan 1 (remote sensing 1)
military name: JB 5 (vanguard 5)
type: SAR

http://space.skyrocket.de/index_frame.htm?http://space.skyrocket.de/doc_sdat/yaogan-1.htm

In fact the names and type of sat are identified by Chinese web surfers.

balance

05-19-2007, 07:56 PM

fishhead

05-19-2007, 08:32 PM

To be fair, Chinese sats are still far behind American's, in capability, types and number. Technical hurdle, fund shortage, lack interest in remote area(like continent America or Europe) make their progress very slow.

But recent years show the sign of acceleration.

goldenpanda

05-20-2007, 12:52 AM

szbd

05-20-2007, 12:58 AM

What extra information would you get if you're at 0.1m resolution instead of 0.3m? When do you start to see diminishing returns?

Seems all weather capability should also be important. Also having greater number of them give you more frequent updates. Resolution should not be the only goal or even the biggest goal.

1. you pay a lot of money for every kg you send into the space, so you always want the best possible performance

2. 0.1m resolution vs 0.3m means 8 times clearer on everything.

3. all weather capability involves radar imaging, that's another area of course China need to improve.

fishhead

05-25-2007, 09:45 AM

China just launched another sat today, code name: Yaogan 2(see above for info of Yaogan 1).

It's a military class sat for sure, also it carries a pico-sat first time, interesting.

Schumacher

05-25-2007, 10:06 AM

China just launched another sat today, code name: Yaogan 2(see above for info of Yaogan 1).

It's a military class sat for sure, also it carries a pico-sat first time, interesting.

Here's some more on this launch. Xinhua says it's for 'scientific research, land resources surveying, crop yield estimate and disaster forecast.'
Sounds harmless enough. :D

http://www.nasaspaceflight.com/content/?cid=5111

China launch Yaogan-II satellite - 100th success
By Rui C. Barbosa, 5/25/2007 4:13:58 AM
Following a number of rumors about a possible military launch from Jiuquan, China has launched a new remote sensing satellite, the Yaogan-II. The launch marked the 100th successful orbital launch for China.

The launch took place at 08:12 UTC on Friday, using a CZ-2D Chang Zheng-2D (CZ2D-8). The first Yaogan satellite was launched from Taiyuan Satellite Launch Center on 27th April 2006.

Having also the designation Jian Bing-5, this satellite series - designed and built by the Shanghai Academy of Spaceflight Technology (SAST) - are the first Chinese 'synthetic aperture radar' satellites.

According to the Chinese news agency Xinhua, Yaogan-II will be used 'for scientific research, land resources surveying, crop yield estimate and disaster forecast.'

Going along the ride with Yaogan-II there was a pico-satellite weighing 1 kg that was developed by the Zheijiang University. This small satellite is going to make micro-electronics research in orbit.

This was 99th flight for the Chang Zheng (Long March) series of rockets.

The launch of Yaogan-II comes a day after Chinese Space Agency chief Sun Laiyanon signed the International Charter 'Space and Major Disasters,' enrolling China in the international global disaster relief regime.

This charter was initiated by ESA and CNES after the July 1999 UNISPACE III conference in Vienna, Austria, and also groups agencies from Great Britain, Canada, India, Japan and the United States.

The objective is to have a network of satellites providing a unified system of space data acquisition and delivery to the areas affected by natural or man-made disasters. This network is being used since 2000.

This was the 5th Chinese launch in 2007 and comes a few days before the launch of SinoSat-3 that will replace the failed SinoSat-2 launched last October.

szbd

05-26-2007, 02:24 PM

crop yield estimate is a very good excuse for having high resolution image satellite. Because the image will never be accurate enough.

RedMercury

05-26-2007, 03:01 PM

"We won't rest until we can count each grain of rice" sort of thing? :)

szbd

05-26-2007, 03:12 PM

It's like they use color and texture of the image taken over the field to estimate. First, you need to distinguish between crops and grass, then different kinds of crops...... One thing for sure, the numbers are always wrong.

They do scientific research too. The fan hui shi 1, another name jianbing 1, took some tomato seeds into the space, then they were distributed to selected high school students for experiment. My high school has a glass warm house and one of my classmates was selected. The tomatos are hugh, and taste good too.

fishhead

07-06-2007, 09:42 PM

Seems a backup of failed SinoStar-2

China launches satellite without US component

By Peter B. de Selding, SPACE.com

CANNES, France — A Chinese Long March 3B rocket on July 5 successfully orbited ChinaSatcom's Chinasat 6B telecommunications satellite, the fourth satellite built for Chinese satellite-fleet operators by Thales Alenia Space — the sole Western satellite builder that has developed a product line designed to avoid U.S. satellite component export restrictions.

Building satellites devoid of U.S. components permits the spacecraft to be launched on a Chinese launch vehicle. Current U.S. government policy effectively bars U.S. satellite components from being exported to China.

Officials from Thales Alenia Space, which is headquartered here, confirmed that Chinasat 6B was healthy in orbit following the launch from the Xichang Satellite Launch Center in southwest China's Sichuan Province. The spacecraft, a Spacebus 4000 C2 satellite frame, weighed 9,920 pounds (4,500 kilograms) at launch and carries 38 C-band transponders. ChinaSatcom intends to operate it from 115.5 degrees east longitude to provide up to 300 television programs in China and elsewhere in East Asia.

Thales Alenia Space has been cultivating the Chinese satellite market for more than 20 years. The company, under its former name Alcatel Alenia Space, built components for the Chinasat 1 satellite before moving toward completed products. The company is the prime contractor for the Sinosat 1, Apstar 6 and Chinasat 9 satellites, in addition to Chinasat 6B.

Thales Alenia Space officials say getting around U.S. State Department restrictions — generally referred to as ITAR, or International Traffic in Arms Regulations— with respect to China's rocket adds around six percent to the cost of a telecommunications satellite. That is because these satellites cannot take advantage of U.S. companies whose production lines are active and thus whose unit costs are reduced — in addition to the fact companies producing in U.S. dollars have an advantage over euro-based companies like Thales Alenia Space.

http://www.usatoday.com/tech/science/space/2007-07-06-china-launches-satellite_N.htm

NigcomSat-1 passes In-Orbit-Test, Contract fulfilled

The China Great Wall Industry Corporation (CGWIC) handed over the Nigerian Communication Satellite (NIGCOMSAT-1), to the Nigerian federal government here on Friday.

Nigeria commissioned the Chinese company to design and build the satellite and to launch it into orbit at the Xichang Satellite Launch Center in China's southwestern Sichuan Province in May 2007.

Nigerian President Umaru Yar'Adua sent his special envoy, Gana Kingibe, secretary to the Nigerian government, to address the handover ceremony and announced the commencement of commercial activities by the Nigcomsat Limited, the operator of the satellite.

The formal operation of NIGCOMSAT-1 would considerably improve the country's telecommunications, broadcasting, the Internet, multimedia, real time monitoring and navigation services, which could in turn create a visible multiplier effect on other sectors of the economy, said the envoy.

He said the operation will signal Nigerian people's determination to be a significant player in today's fast globalized and knowledge and technology-driven world.

He commended the CGWIC's contribution and said "Our appreciation also goes to the government and people of the People's Republic of China."

Other Nigerian government officials, Chinese diplomats and company officials of both sides attended the ceremony.

http://www.chinadaily.com.cn/china/2007-07/07/content_912304.htm

Schumacher

07-09-2007, 10:03 AM

Below is a report saying China's moon probe 'Chang Er 1' will be launched on Oct 1 ie the national day.
Interestingly, the report also says the date is also chosen partly to be after Japan's probe in Aug so that they can study some data from its launch & path to the moon.

http://realtime.zaobao.com/2007/07/070709_30.html

中国首颗绕月卫星十月一日在西昌发射

（2007-07-09　5:00 pm）

　　（综合讯）中央社消息，中国绕月卫星“嫦娥一号”将于十月一日在西昌发射中心发射，这代表中国正式启动登月计划。

　　一名参与“嫦娥一号”工程的人员、中国国防科工委综合管理处以及国防科工委“嫦娥一号”密云地面站负责人都证实，绕月卫星将于“十、一”中国国庆日在西昌发射。

　　工程人员说，目前“嫦娥一号”发射工作已大部分完成，选在十月一日发射，可能与日本八月十六日首次发射绕月卫星有关，如此可使中国分析日本绕月卫星的数据以修正不成熟的绕月卫星技术，以保证该计划取得更大的成功。

　　他说，发射绕月卫星技术极其复杂，需要进行停泊轨道、地球月亮转移轨道加速、轨道修正等七个关键步骤，任何一步出现微小错误，就会导致计划失败。

　　据表示，目前“嫦娥一号”带有比美国卫星都先进的仪器，将首次在世界上拍摄三维月球地图。

联合早报网　
（编辑：黄秀茱）

Colt .45

07-09-2007, 01:35 PM

中国首颗绕月卫星十月一日在西昌发射

（2007-07-09　5:00 pm）

　　（综合讯）中央社消息，中国绕月卫星“嫦娥一号”将于十月一日在西昌发射中心发射，这代表中国正式启动登月计划。

　　一名参与“嫦娥一号”工程的人员、中国国防科工委综合管理处以及国防科工委“嫦娥一号”密云地面站负责人都证实，绕月卫星将于“十、一”中国国庆日在西昌发射。

　　工程人员说，目前“嫦娥一号”发射工作已大部分完成，选在十月一日发射，可能与日本八月十六日首次发射绕月卫星有关，如此可使中国分析日本绕月卫星的数据以修正不成熟的绕月卫星技术，以保证该计划取得更大的成功。

　　他说，发射绕月卫星技术极其复杂，需要进行停泊轨道、地球月亮转移轨道加速、轨道修正等七个关键步骤，任何一步出现微小错误，就会导致计划失败。

　　据表示，目前“嫦娥一号”带有比美国卫星都先进的仪器，将首次在世界上拍摄三维月球地图。

联合早报网　
（编辑：黄秀茱）[/QUOTE]

What is with all the Question marks? is it soposed to be Chinese or something. :confused:

nero

07-09-2007, 03:10 PM

China just launched another sat today, code name: Yaogan 2(see above for info of Yaogan 1).

It's a military class sat for sure, also it carries a pico-sat first time, interesting.

.

interesting indeed!!!

can u please provide the resolution of this new satellite ??

also it's orbit location ?? is it leo ??

also is this the same satellite which has an international no; of 2006-019A ??

please update me if possible.

cheers.

.

Roger604

07-09-2007, 05:06 PM

Below is a report saying China's moon probe 'Chang Er 1' will be launched on Oct 1 ie the national day.
Interestingly, the report also says the date is also chosen partly to be after Japan's probe in Aug so that they can study some data from its launch & path to the moon.

Can anyone comment on the method China is using to get the probe to moon orbit?

Apparently, the rocket is not strong enough to deliver the payload to the moon, so they have to use the earth's gravity to sling-shot the probe into moon orbit. This sounds really sophisticated and clever, but is it reliable? Have other countries tried this too?

Lucky for the Japanese, their rocket is big enough to deliver their probe straight to the moon.

RavenWing278

07-09-2007, 08:58 PM

for a rocket to acheive max thrust and conserve max fuel, it has to be launched in an easterly direction, thus taking advantage of the earths rotational velocity. It will have to belaunched as close to the equator as possible but as china is no where near the equator would they have their launch from a neighbouring country?

sinowarrior

07-10-2007, 06:08 AM

since hainan base is not ready for action yet, so xichang has to be used, and it should work fine.

sling shot was used so many times during the exploration of other planents, so it should not be a problem.

Lucky for the Japanese, their rocket is big enough to deliver their probe straight to the moon????

what do you mean?SELENE is launched to a geocentric parking orbit first, so in this regard, it is not directly send to the moon by H2A

Finn McCool

07-18-2007, 10:49 PM

sling shot was used so many times during the exploration of other planents, so it should not be a problem.

Yes, the gravity slingshot technique has been used many tines to send probes out of Earth orbit to the moon or other planets. As far as I know it has been around for decades.

tphuang

07-19-2007, 11:44 PM

http://news3.xinhuanet.com/mil/2007-07/17/content_6390087.htm

斗卫星导航定位系统首次公开展出
2007年07月17日 19:26:53 　来源：新华网
【字号大中小】　【我要打印】　【我要纠错】

【Email推荐：】

新华网北京７月１７日电（记者黎云、黄书波）在新中国成立以来国防和军队建设成就展上，我国自行研制的北斗卫星导航定位系统揭开了它的神秘面纱。

记者在现场看到，通过北斗卫星导航定位系统，可以在大屏幕上清晰地看到远在千里之外的边防巡逻车、水面舰艇的运行轨迹，指挥员还可以与定位目标进行双向的
文字、数据交流。在一张分辨率达到０．５米的大分辨率地图上，观众用手指选定目标后，屏幕上立即显示出该目标的精确地理坐标。

解放军总参谋部的一位军官介绍说：“卫星导航定位是指利用卫星导航定位系统提供位置、速度及时间等信息，由此完成对各种目标的定位、导航、监测和管理。通俗地讲，就是在外太空设置一个‘无线电导航台’ 。”

我国正式开始研制独立自主的卫星导航系统始于１９９４年。此前，世界上只有美国、俄罗斯和欧洲自主研制生产卫星导航系统。

basically talking about the beidou system, it says that the reporters saw through beidou navigation system, a huge monitor showing ships and border patrolling cars from thousands of meter away, controller can do two way communication (through word/data) with target, and that they can determine the place of the target on a map precise to 0.5 m.

Well, looks like this is a real article. If beidou really is precise to 0.5 m, then that's pretty impressive.

szbd

07-27-2007, 02:21 AM

http://news3.xinhuanet.com/mil/2007-07/17/content_6390087.htm

basically talking about the beidou system, it says that the reporters saw through beidou navigation system, a huge monitor showing ships and border patrolling cars from thousands of meter away, controller can do two way communication (through word/data) with target, and that they can determine the place of the target on a map precise to 0.5 m.

Well, looks like this is a real article. If beidou really is precise to 0.5 m, then that's pretty impressive.

It's said the resolution of the map is 0.5m. The beidou may be has a less precision, but you still can get every point's coordinate on a 0.5m resolution map, just may not be so accurate.

Schumacher

09-19-2007, 07:35 PM

A new joint Sino-Brazil sat launched with a camera with 2.5 m resolution. Interesting that the article says there're military intelligence applications as well.

http://www.space.com/missionlaunches/sfn_070919_china_cbers2blnch.html

China, Brazil Launch Remote Sensing Satellite
By Stephen Clark

posted: 19 September 2007
11:27 a.m. ET

A joint mission developed by China and Brazil was shot into an orbit circling Earth's poles to snap detailed images of the globe during an early Wednesday launch from China's northeastern space base.

A Long March 4B rocket launched with the international satellite at 0326 GMT Wednesday (11:26 p.m. EDT Tuesday) from the Taiyuan space center in China's Shanxi province, according to the state-run Xinhua news agency.

The booster's three liquid-fueled stages accurately deposited the third China-Brazil Earth Resources Satellite into a Sun-synchronous orbit about 12 minutes after liftoff.

CBERS 2B was left in a nearly circular orbit with an average altitude of approximately 462 miles (209 miles), Xinhua reported. The Long March 4B was shooting for an orbital inclination of 98.5 degrees.

Wednesday's launch marked the 60th consecutive success for China's Long March rocket fleet. It was also the 8th space launch for China so far this year.

CBERS 2B will spend the next few weeks undergoing systems tests and preparations for an operational mission expected to last at least two years.

The 3,200-pound (1,451-kilogram) satellite was ordered by Chinese and Brazilian officials in 2004 to bridge the gap between older spacecraft and next-generation satellites, which should begin launching in 2009.

The craft's predecessors, CBERS 1 and CBERS 2, were launched by Chinese rockets in 1999 and 2003, respectively. Both outlived their baselined two-year missions, according to Brazil's National Institute for Space Research, a co-sponsor of the program.

The China Academy of Space Technology was in charge of the Chinese contribution to the mission, Xinhua reported.

CBERS 2B carries three primary imaging cameras to take a wide range of pictures of locations scattered throughout the world.

A low-resolution camera with a 60-degree field of view will specialize in capturing images of large swaths of the planet. Another camera will be capable of taking pictures with a resolution of about 65 feet (213 meters).

Unlike its forerunners, CBERS 2B includes a high-resolution black-and-white camera able to produce images showing objects as small as 2.5 meters, or about eight feet. CBERS 1 and CBERS 2 each carried an infrared scanning instrument instead.

Scientists expect to use data from the project in environmental monitoring, crop planning and managing water resources. Images can also be used to identify types of vegetation and in soil surveys. Pictures could also end up in geography textbooks, according to Brazilian space officials.

Images from the new high-resolution camera will also be useful in urban planning and military intelligence applications for China and Brazil.

China has a 70 percent stake in the 19-year-old program, while Brazil controls about 30 percent of the project. Users in both nations have access to the satellite imagery.

Pictures from the spacecraft have been distributed online since 2004, and more than 15,000 users have downloaded about 320,000 images since the Internet campaign began, according to Brazilian officials.

Two more satellites with four cameras each will be launched in 2009 and 2011. The program extension was approved in 2002, and China and Brazil will equally split responsibility for the new project.

Schumacher

11-11-2007, 10:31 PM

China launches the YG-3 sat. As usual, they say this is for 'crop yield estimate' etc but this is widely seen as a SAR with military applications.

http://news.xinhuanet.com/english/2007-11/12/content_7054385.htm

China launches new remote sensing satellite
www.chinaview.cn 2007-11-12 09:00:33 Print

TAIYUAN, Nov. 12 (Xinhua) -- China launched a new remote sensing satellite "Yaogan III" Monday morning.

The satellite was launched on a Long March-4C carrier rocket from the Taiyuan Satellite Launch Center in north China's Shanxi Province at 6:48 a.m. (Beijing Time).

It entered the preset orbit 21 minutes later.

The 2,700-kilogram satellite will be used for scientific research, land resources surveying, crop yield estimate and disaster prevention and relief.

Both the satellite and the carrier rocket are developed by the Shanghai Academy of Space flight Technology affiliated to the China Aerospace Science and Technology Corporation.

The launch was the 104th mission of China's Long March series of rockets since April 24, 1970, when a Long March-1 rocket successfully sent China's first satellite Dongfanghong-1 into the space.

On Oct. 24, a Long March 3A carrier rockets successfully sent China's first lunar probe Chang'e-1 into the space.

The "Yaogan I" satellite was launched also from the Taiyuan Satellite Launch Center on April 27, 2006, and the "Yaogan II" was launched on May 25, 2007 from the Jiuquan Satellite Launch Center in northwest China's Gansu Province.
Editor: An Lu

Schumacher

11-14-2007, 06:36 PM

Here more intro to the YG-3 SAR as well as what appears to be a modofied launch vehicle.
Interestingly, it mentions the possible use of SAR to track subs in shallow waters.

http://www.nasaspaceflight.com/content/?cid=5282

China launches military satellite via new Long March vehicle

By Rui C. Barbosa, 11/12/2007 6:48:42 AM
The Chinese have launched a new remote sensing satellite - believed to be of a military nature - from the Taiyuan Satellite Launch Center, located on the Shanxi Province, northern China.

The launch of the Yaogan-III satellite took place in the early hours of Monday local time (22:48 UTC Sunday night), separating from its CZ-4C Chang Zheng-4C (Long March) rocket - believed to be a new variant of the CZ-4B family - 13 minutes later.

According to the Xinhua news service, the new satellite, weighing 2700 kg, will be used for scientific research, land resources surveying, crop yield estimate and disaster prevention and relief. However, the satellite appears to have a military nature.

This is the second Jian Bing-5 satellite. The first JianBing-5 was launched on April 27th, 2006. These satellites are equipped with a SAR (Synthetic Aperture Radar) radar, capable of producing high-resolution imagery of the Earth's surface in all-weather and in day and night conditions.

The SAR can measure both the intensity and phase of reflected microwave radiation, resulting not only in a high sensitivity to texture, but also via three-dimensional capabilities.

While conventional optical imagery intelligence systems are less effective in night and bad weather conditions, the SAR generates its own microwave radiation that can penetrate cloud, haze, shallow water, or even ground surface, to obtain high-resolution images of the Earth surface, as well as underwater and underground.

For the People's Liberation Army, the SAR satellite imagery is vital in its ability to achieve information dominance in future warfare. Capable of seeing through clouds, rain, fog and dust in order to detect targets on the ground, underground or in the ocean, the SAR satellites are extremely useful in tracking moving targets, and can be useful for military mapping requirements.

This technology has been touted as been a wish of the Chinese, for a means to track enemy submarines in shallow waters.

The YaoGan-III was launched by a CZ-4C Chang Zheng-4C rocket - the first time there is any mention of this vehicle. The first YanGan satellite was launched by a CZ-4B/2 Chang Zheng-4B/2 (or Chang Zheng-4B Batch 02). It is believed this vehicle has a new upper second stage.

This was the 105th successful orbital launch for China, the 104th launch of the Chang Zheng (Long March) series of rockets, while also being the 23rd successful launch from the Taiyuan Satellite Launch Center - the third from Taiyuan this year, and the 10th - and probably last - Chinese launch of 2007.

On October 24, China launched its first lunar probe, Chang'e-1 - which will study our natural satellite during more than a year. Next year will be a major year for the Chinese space exploration.

Next year, China will launch its third manned mission, ShenZhou-7, that will achieve a major step for the country's space exploration push, when two of its Yuhangyuans step outside to carry out the first Chinese spacewalk.

tphuang

12-06-2007, 07:37 PM

http://news.xinhuanet.com/english/2007-12/06/content_7209568.htm
This is kind of interesting, a little bit on the Beidou navigational system being up and running for the 2008 Beijing Games

BEIJING, Dec. 6 (Xinhua) -- A leading engineer for China's indigenous satellite navigation system said the new system would be used in guiding traffic and monitoring sports venues during the Beijing Olympics in summer 2008.

Ran Chengqi, deputy director of China Satellite Navigation Engineering Center, said the Compass Navigation Satellite System, which consists of five positioning satellites orbiting the Earth, will help alleviate traffic problems during the Olympics by providing detailed positioning information to individual drivers.

The home-grown navigation system, coded as Beidou in the Chinese pronunciation for the compass, can not only pinpoint precise locations of moving vehicles, but also tell drivers real-time traffic on routes to their destinations, Ran said at an international navigation industry forum in Shanghai.

In working for the Olympics, Ran said, the Beidou system would be compatible to the prevailing global positioning system (GPS), which was developed by the U.S. military and is now in pervasive civilian use worldwide.

China had primarily constructed the experimental satellite navigation web by May 2003, via launching three Beidou satellites into space. In February and April 2007, another two satellites were separately sent into orbit. The cluster of five Beidou satellites are comprised of the main infrastructure of the Chinese satellite navigation network.

China is going to launch more navigation satellites in 2008, the Shanghai-based Wenhui Daily quoted Ran as saying.

Besides the specific employment for the Beijing Olympics, Ran said, the Beidou system would also benefit wider applications from transportation, fishery, mining, to wildfire surveillance, Ran said.

In addition to the GPS and GLONASS, which was funded and constructed by the Russian military, the European Union invested in 2003 roughly 3.6 billion euros in developing an ambitious project, Galileo, which is planned to group 30 navigation satellites. The Galileo project does not run smoothly because of fund shortage.

Schumacher

02-19-2008, 09:21 AM

Interesting yr for China's space industry. I've read somewhere the launch number/sat could be up to 18.
An interesting one is the launch for the world's favourite leader, Mr Chavez. :)

http://www.chinadaily.com.cn/china/2008-02/19/content_6464333.htm
Boom year for space launches
By Xin Dingding (China Daily)
Updated: 2008-02-19 06:54

A record number of spacecraft will be launched this year, a top scientist revealed Monday.

Yang Baohua, chief of the China Academy of Space Technology, said the more than 10 on the launch list include the Shenzhou VII spaceship, two environmental satellites, the Fengyun-2 meteorological satellite and a communications satellite for Venezuela.

The country launched an average of eight spacecraft in the past two years.

"China's space technology has entered a new stage. The design and manufacture of satellites take less time, and homemade satellites are more reliable and have a longer lifespan," Yang told a forum.

The academy has designed most of China's satellites, including the Shenzhou spaceships. By last December, the country had designed and manufactured 88 satellites.

The launch of Shenzhou VII is the highlight this year, because one of the three astronauts on board will conduct the country's first spacewalk.

Yang said that it would mark a breakthrough in the technology of extravehicular operation.

Shenzhen VIII, whose launch date has not been decided, will conduct spacecraft rendezvous and docking - key technologies that must be mastered if the country is to launch space laboratories and a space station, he said.

"Usually, other countries conduct 20 to 30 flight experiments to master the two technologies, but China plans to do it in two attempts," he said.

Besides Shenzhou VII, two environmental satellites will also be launched.

The Huanjing-1A and Huanjing-1B, together with a third to be launched in 2009, will form China's first small satellite constellation for disaster monitoring, to enable scientists to conduct all-weather, round-the-clock monitoring and forecast on the environment and disasters.

In another development, Beijing has expressed concern over Washington's plan to shoot down a damaged satellite, and urged the US administration to fulfill its international obligations.

Foreign Ministry spokesman Liu Jianchao said on Sunday that the Chinese government is highly concerned about the situation and urged the US to avoid causing damage to security in outer space and other countries.

"Relevant departments in China are closely watching the situation and working out preventive measures," Liu said.

According to news reports, the US Defense Department is planning to shoot down a damaged spy satellite that is expected to hit the Earth in early March. The satellite, which contains toxic fuel, became defunct shortly after its launch in 2006.

coolieno99

02-19-2008, 05:44 PM

Youtube video of Chang'E lunar orbiter launch. The video contains both real and animated footages.

http://uk.youtube.com/watch?v=kBSIJSdvM9g&feature=related

Credit: sasalove2a @ youtube.com

maozedong

02-22-2008, 12:47 AM

http://news.xinhuanet.com/mil/2008-02/22/xinsrc_592020522103840629384.jpg

新华网
上海市经济委员会２１日宣布，我国“北斗”卫星导航系统的核心芯片“领航一号”已在上海研制成功。“领航一号”是我国自主开发的完全国产化的首个卫星导航基带处理芯片，并将替代“北斗”系统内的国外芯片。

“领航一号”芯片由上海复控华龙微系统技术有限公司负责

研发。这种芯片不仅完全实现了国产化，而且性能和造价明显优于国外产品。复控华龙公司市场总监杨泓表示，“ 北斗”导航系统原来模块的造价要２万元，现在则可以降到１０００元以内。此外，“领航一号”的体积大大缩小，功耗大大降低。

“北斗”导航系统是我国具有自主知识产权的卫星定位系统，与美国ＧＰＳ、俄罗斯格罗纳斯、欧盟伽利略系统并称全球四大卫星导航系统。它的研究成功，打破了卫星定位导航应用市场由国外ＧＰＳ垄断的局面。前不久，我国已成功发射了第二代北斗导航试验卫星，未来将形成由５颗静止轨道卫星和３０颗非静止轨道卫星组成的网络，我国自主卫星定位导航正在由试验向应用快速发展。

据悉，“领航一号”将替代“北斗”导航系统内的国外芯片，可以广泛应用于海陆空交通运输、有线和无线通信、地质勘探、资源调查、森林防火、医疗急救、海上搜救、精密测量、目标监控等领域，具有重大的国防意义和经济价值。（杨金志）

News.Xinhuanet
Shanghai Economic Commission announced on the 21st,China's "Beidou" satellite navigation systems core chip "pilotage 1" has been successfully developed in Shanghai. "Pilotage 1" is China's own development of the first entirely domestic satellite navigation baseband processor chip, and replace "Beidou" system of foreign chips.

"Pilotage 1" by the Shanghai-chip micro-system technology with Hualong Ltd.

Research and development. The chip not only fully entirely domestic, and the performance and cost is superior to foreign products. Hualong-controlled company marketing director YANG Hong said, "Beidou" navigation system to the original module cost 20,000 RMB yuan, but now it can be reduced to less than 1,000 RMB yuan. In addition, the "pilotage 1" much smaller, power greatly reduced.

"Beidou" navigation system, which has independent intellectual property rights of the satellite positioning system, GPS with the United States, Russia Geluonashi, the EU Galileo system said the four major global satellite navigation system. Its research success, breaking the application of satellite navigation positioning GPS market by foreign monopoly situation. Not long ago, China has successfully launched the second generation of the Beidou navigation satellite experiment, the future will be formed by five geostationary orbit satellites and 30 non-geostationary orbit satellites networks, China's own satellite navigation positioning from being the rapid test to application development.

It is learnt that, "Pilotage 1" will replace "Beidou" navigation system, the foreign chip can be widely used in air, sea and land transportation, wired and wireless communications, geological exploration, resource survey, forest fire prevention, emergency medical treatment, search and rescue at sea, Precision measurement, monitoring objectives in areas such as national defense is of great significance and economic value. (Yang Chi)