Beidou 2 G1

Compass-G1 (BD-2 G1)

China (PR)

Spacecraft nº:

Chinese spacecraft nº: 137

Also called: Beidou 2-G1 & Beidou DW3

Designation	36287 / 10001A
Launch date	16 Jan 2010 - 16:12 UT
Launch site	Xichang, LC1B
Launch vehicle	CZ-3C
Mission	Military: Navigation/Global Positioning
Geostationary orbit on Apr 2010:
Perigee / Apogee	35768 x 35803 km
Eccentricity	4,15E-04
Inclination	1.78 deg
Period	1436.05 min

Prime contractor	Space Technology Research Institute (part of CASC)
Platform	DFH-3B Bus
Operator	Chinese Defense Ministry
Mass at launch	4600 kg (3050 kg propellant
Dry Mass	kg
Basic shape
Dimension (m)
Solar array
Stabilization
DC power	6800 W
Design lifetime	> active: 8 yrs - still active

Date	Position	Remarks
April 2010	144.50° E

Part of Compass constellation.
China launched the third geostationary Beidou navigation satellite (di san ke beidou daohang weixing) on Jan 16, the world′s first orbital launch of 2010. The CZ-3C rocket put Beidou DW3 in a 196 x 35620 km x 20.5 deg transfer orbit. The satellite is also called COMPASS-G1.
The Beidou satellites are reportedly based on the DFH-3 communications satellite, and so probably use an FY-25 liquid apogee motor with 490N thrust.

Ref.: #3(SD571), #7(JR621,622), #226, #233 - update: 08.11.20