BD-2 G2 [CAST]
Official name BEIDOU 2 G8
Alternative name Beidou DW 45
Cospar ID 2019-027A
Norad ID 44231
Launch date 2019-05-17
Launch site XSC
Launch vehicle CZ-3C/G2
Country/Organization China
Type application Navigation
Operator CNSA
RCS size LARGE
Decay date ON ORBIT
Period (min) 1436.14
Inclination (deg) 1.92
Perigee (km) 35776
Apogee (km) 35799
Eccentricity 0.000321341250436605
Mean motion (revs. per day) 1.00268776024622
Semi-Major axis (km) 42165.635
Raan (deg) 73.8518
Arg of perigee (deg) 154.8283
Shape Box + 2 Pan
Mass (kg) 3060
Height (m) 3
Width (m) 1.7
Depth (m) 1.7
Span (m^2) 18
Lifetime 8 years
Contractors CAST
Equipment ?
Propulsion 490 N
Configuration DFH-3 Bus
Power 2 deployable solar arrays, batteries

BD 2G (Beidou 2G) satellites are the GEO component of the 2rd phase of the chinese Beidou (Compass) satellite navigation system, which, in contrast to GPS and GLONASS, uses both geostationary satellites and satellites in intermediate orbit.

This series, also called "Compass-G" is the geostationary constellation.

The satellites are based on the DFH-3 Bus. They feature a phased array antenna for navigation signals and a laser retroreflector and additionally a S/L-band dish antenna and a C-band horn antenna.

The first satellite of this series, BD-2 G2, failed early on orbit.

Satellite COSPAR Date LS Launch Vehicle Remarks
COMPASS G2 2009-018A 2009-04-14 XSC CZ-3C
BEIDOU 3 2010-001A 2010-01-16 XSC CZ-3C
BEIDOU 4 2010-024A 2010-06-02 XSC CZ-3C
BEIDOU 6 2010-057A 2010-10-31 XSC CZ-3C
BEIDOU 11 2012-008A 2012-02-24 XSC CZ-3C
BEIDOU 16 2012-059A 2012-10-25 XSC CZ-3C
BD-2-G7 2016-037A 2016-06-12 XSC CZ-3C/G2
BEIDOU 2 G8 2019-027A 2019-05-17 XSC CZ-3C/G2