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BeiDou Space Segment: Difference between revisions

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As of April 2011, eight satellites for Compass have been launched. According to an official report <ref name="Compass-IGSO3">[http://business.globaltimes.cn/industries/2011-04/642763.html ''China completes basic Beidou (Compass) Navigation Satellite System''], 2011-04-10 by Globaltimes.cn</ref>, "the eighth Beidou satellite marks the completion of basic function of Beidou (Compass) Navigation Satellite System...collaborate with five navigation satellites...will be able to provide services to most regions in China after a period of orbiting running tests and system integration."
As of April 2011, eight satellites for Compass have been launched. According to an official report <ref name="Compass-IGSO3">[http://business.globaltimes.cn/industries/2011-04/642763.html ''China completes basic Beidou (Compass) Navigation Satellite System''], 2011-04-10 by Globaltimes.cn</ref>, "the eighth Beidou satellite marks the completion of basic function of Beidou (Compass) Navigation Satellite System...collaborate with five navigation satellites...will be able to provide services to most regions in China after a period of orbiting running tests and system integration."
{| class="wikitable"
|- style="background:#ffdead;"
!Date!! Launcher !! Satellite !! Orbit !! Usable !! System
|-
|10/31/2000 || [[Long March 3A|LM-3A]] || [[BeiDou-1A]] || [[Geostationary orbit|GEO]] 59°E || ? || rowspan="4" | BeiDou-1
|-
|12/21/2000 || LM-3A || [[BeiDou-1B]] || GEO 80°E || Yes
|-
|5/25/2003 || LM-3A || [[BeiDou-1C]] || GEO 110.5°E || Yes
|-
|2/3/2007 || LM-3A || [[BeiDou-1D]] || supersync orbit<ref name="ACW" >{{cite web
|url=http://www.armscontrolwonk.com/2594/beidou-update
|title=Beidou Update
|date=2010-01-18
|publisher=armscontrolwonk.com
|accessdate=2010-05-20}}</ref> || No
|-
|4/14/2007 || LM-3A || [[Compass-M1]] || [[Medium Earth Orbit|MEO]] ~21,500&nbsp;km || Testing only || rowspan="8" | BeiDou-2 (Compass)
|-
|4/15/2009 || [[Long March 3C|LM-3C]] || [[Compass-G2]] ||Drifting || No
|-
|1/17/2010 || LM-3C || [[Compass-G1]] || GEO 144.5°E <ref name="Compass-G1">{{cite web
|url=http://news.sohu.com/20100117/n269631862.shtml
|title=China successfully launched the third BeiDou satellite
|publisher=Sohu
|date=2010-01-17
|accessdate=2010-05-19
|language=Chinese}}</ref> || Yes
|-
|6/2/2010 || LM-3C || [[Compass-G3]]<ref>{{cite news
|url=http://www.nasaspaceflight.com/2010/06/china-launches-beidou-2-station-lunar-plans-outlined/
|title=China launches BeiDou-2 – Station and Lunar plans outlined
|date=2010-06-02
|publisher=[[NASASpaceFlight.com]]
|accessdate=2010-06-03}}</ref> ||GEO 84°E || Yes
|-
|8/1/2010 || LM-3A || [[Compass-IGSO1]] || 118°E incl 55°<ref>{{cite web|url=http://news.163.com/10/0806/06/6DCRU0AJ00014AED.html |title=The fifth Beidou navigation satellite enters orbit |publisher=News.163.com |date=2010-08-06 |accessdate=2010-12-30 |language=Chinese}}</ref>|| Yes
|-
|11/1/2010 || LM-3C || [[Compass-G4]] ||GEO 160°E|| Yes
|-
|12/18/2010 || LM-3A || [[Compass-IGSO2]]<ref>{{cite web|url=http://news.163.com/10/1218/04/6O5LV2UF00014JB6.html |title=China launches the seventh Beidou navigation satellite |publisher=News.163.com |date=2010-12-17 |accessdate=2010-12-30 |language=Chinese}}</ref> || 118°E incl 55° || Yes
|-
|04/10/2011 || LM-3A || [[Compass-IGSO3]]<ref name="Compass-IGSO3" /> || 118°E incl 55°, 200~35,991km || Yes
|}


==Notes==
==Notes==

Revision as of 16:18, 11 July 2011


COMPASSCOMPASS
Title BeiDou Space Segment
Author(s) GMV.
Level Basic
Year of Publication 2011
Logo GMV.png


The Compass Navigation Satellite System (CNSS), or BeiDou-2, is China’s second-generation satellite navigation system capable of providing continuous, real-time passive 3D geo-spatial positioning and speed measurement. The system will initially used to provide high-accuracy positioning services for users in China and its neighbouring regions, covering an area of about 120 degrees longitude in the Northern Hemisphere. The long-term goal is to develop an independent global navigation satellite network similar to the GPS and GLONASS. [1]

COMPASS Space Segment

The COMPASS Space Segment will consist of a constellation of 35 satellites, which include 5 geostationary orbit (GEO) satellites and 30 non-GSO satellites; 27 in Medium Earth Orbit (MEO) and 3 in Inclined GSO (IGSO),that will offer complete coverage of the globe.[2]

It is planned that Compass system will have more than 10 satellites by 2012 and may offer services for the Asia-Pacific region; The global navigation system should be finished by 2020.[3]

As of April 2011, eight satellites for Compass have been launched. According to an official report [4], "the eighth Beidou satellite marks the completion of basic function of Beidou (Compass) Navigation Satellite System...collaborate with five navigation satellites...will be able to provide services to most regions in China after a period of orbiting running tests and system integration."

Date Launcher Satellite Orbit Usable System
10/31/2000 LM-3A BeiDou-1A GEO 59°E ? BeiDou-1
12/21/2000 LM-3A BeiDou-1B GEO 80°E Yes
5/25/2003 LM-3A BeiDou-1C GEO 110.5°E Yes
2/3/2007 LM-3A BeiDou-1D supersync orbit[5] No
4/14/2007 LM-3A Compass-M1 MEO ~21,500 km Testing only BeiDou-2 (Compass)
4/15/2009 LM-3C Compass-G2 Drifting No
1/17/2010 LM-3C Compass-G1 GEO 144.5°E [6] Yes
6/2/2010 LM-3C Compass-G3[7] GEO 84°E Yes
8/1/2010 LM-3A Compass-IGSO1 118°E incl 55°[8] Yes
11/1/2010 LM-3C Compass-G4 GEO 160°E Yes
12/18/2010 LM-3A Compass-IGSO2[9] 118°E incl 55° Yes
04/10/2011 LM-3A Compass-IGSO3[4] 118°E incl 55°, 200~35,991km Yes

Notes

References

  1. ^ Compass on the Chinese Defence Today website
  2. ^ BeiDou and Compass in Wikipedia
  3. ^ BeiDou navigation system covers Asia-Pacific region till 2012, 2010-03-03 by Xinhua News Agency
  4. ^ a b China completes basic Beidou (Compass) Navigation Satellite System, 2011-04-10 by Globaltimes.cn
  5. ^ Template:Cite web
  6. ^ Template:Cite web
  7. ^ Template:Cite news
  8. ^ Template:Cite web
  9. ^ Template:Cite web
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