Compass-IGSO1

Compass-IGSO1

Major contractors	CAST
Bus	DFH-3
Mission type	Navigation
Launch date	31 July 2010
Carrier rocket	Long March 3C
Launch site	Xichang
COSPAR ID	2010-036A
Orbital elements
Regime	Geosynchronous

Compass-IGSO1, also known as Beidou-2 IGSO1 is a Chinese navigation satellite which will become part of the Compass navigation system. It was launched in July 2010, and became the fifth Compass satellite to be launched after Compass-M1, G2, G1, and G3.

Compass-IGSO1 was launched at 21:30 GMT on 31 July 2010.^[1] The launch used a Long March 3A carrier rocket, flying from the Xichang Satellite Launch Centre. The satellite is developed in the basis of the DFH-3 satellite platform and has a lifespan of 8 years.

Instruments

The primary instrument aboard Compass-IGSO1 is navigation system operating in L-band. Compass-IGSO1 is the second satellite of Compass navigation system with optical synchronization link. Space segment of an instrument called Laser time transfer (LTT) consists of corner-cube retroflectors array (hexagonal shape 49 × 43 cm, 90 pcs, 33 mm diameter, 770 cm² reflective area^[2]) and single-photon avalanche diode based detector developed in cooperation with CTU.^[3] The ground segment is the dedicated Chinese satellite laser ranging network. The combination of traditional passive laser ranging with active single photon detection aboard is producing data for ground-to-space oscillator time-base with 10⁻¹¹ s precision.

See also

Spaceflight portal

• 2010 in spaceflight

References

1. ^ "CZ-3A Chang Zheng-3A - BeiDou-2 IGSO-1 - 2010.Aug.01". Rui C. Barbosa. 2010-01-08. http://www.space.com/common/forums/viewtopic.php?t=25473. Retrieved 2011-01-06. 
2. ^ "Laser Retro Reflective Arrays on the Compass Satellites". Chinese Academy of Sciences. 2008-10-17. http://www.slidefinder.net/w/wanzhen/13626505. Retrieved 2011-01-06. 
3. ^ "[Detector developed on FNSPE successfully operating on second Chinese satellite]" (in Czech). Czech Technical University in Prague. 2011-01-02. http://jaderka.fjfi.cvut.cz/aktuality/2011/721-detektor-vyvinut%C3%BD-na-fjfi-%C3%BAsp%C4%9B%C5%A1n%C4%9B-pracuje-u%C5%BE-na-druh%C3%A9-%C4%8D%C3%ADnsk%C3%A9-dru%C5%BEici. Retrieved 2011-01-06.