BD-3 G [CAST]
Official name BEIDOU 3G1
Alternative name Beidou DW 41
Cospar ID 2018-085A
Norad ID 43683
Launch date 2018-11-01
Launch site XSC
Launch vehicle CZ-3B/G3
Country/Organization China
Type application Navigation
Operator CNSA
RCS size LARGE
Decay date ON ORBIT
Period (min) 1436.03
Inclination (deg) 2.1
Perigee (km) 35770
Apogee (km) 35800
Eccentricity 0.000419170043314238
Mean motion (revs. per day) 1.00276456619987
Semi-Major axis (km) 42163.135
Raan (deg) 111.0292
Arg of perigee (deg) 341.4073
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-3B Bus
Power 2 deployable solar arrays, batteries

BD 3G (Beidou 3G) satellites are the GEO component of the 3rd 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-3B Bus. They feature a phased array antenna for navigation signals and a laser retroreflector and additionally deployable S/L-band and C-band antennas.

Satellite COSPAR Date LS Launch Vehicle Remarks
BEIDOU 3G1 2018-085A 2018-11-01 XSC CZ-3B/G3
BEIDOU 3 G2 2020-017A 2020-03-09 XSC CZ-3B/G3
BEIDOU 3 G3 2020-040A 2020-06-23 XSC CZ-3B/G3