Beidou 1D

Also called: Beidou-2 1

Designation	30323 / 07003A
Launch date	02 Feb 2007 - 16:28 UT
Launch site	Xichang, LC1B
Launch vehicle	CZ-3A
Mission	Navigation
Earth orbit on Feb 2.95:
Perigee / Apogee	192 x 41772 km
Inclination	24.99°
Period	750.67 min
Geostationary orbit on April:
Perigee / Apogee	35256 x 36304 km
Inclination	5.88°
Period	1435.77 min

Prime contractor	Space Technology Research Institute (part of CASC)
Platform	DFH-3 bus
Operator	Chinese Defense Ministry
Mass at launch	2200 kg (1100 kg propellant)
Dry Mass	kg
Basic shape
Dimension (m)	2.2 x 1.72 x 2.0 m
Solar array	pair of solar panels, span of 18.1 m
Stabilization
DC power
Design lifetime	5-8 yrs

Begin	Position	Remarks
	58.75 °E
18 Feb 2009	144 °E	manoeuvred off-station, drifting to W

Out of service:
Cause:	Retired

Following the three successful launches of the BeiDou 1 satellites in 2000 and 2003, a fourth GEO satellite was launched by a CZ-3A launch vehicle from Xichang Satellite Launch Centre (XSLC) at 16:28 GMT on 2 February 2007 (00:28 local time on 3 February 2007).
The CZ-3A rocket put the fourth Beidou payload in a 192 x 41772 km x 25.0 deg supersynchronous transfer orbit. As of Feb 24, 2007 the Beidou satellite - reportedly the first of a new generation - remained in this transfer orbit and had not moved to geostationary, suggesting the possibility that it may have failed.
The satellite suffered from a control system malfunction, which resulted in the solar power panel unable to expand. After some adjustment work from the ground control station, the satellite was said to be fully restored. The satellite was placed into the GEO in early April 2007, presumably to complement the three existing regional Beidou-1 geostationary satellites by occupying the open slots at Longitudes 58.75 degrees East.

Ref.: #7(JR577-579), #206, #207, #225(09.02), #233 - update: 25.12.11