Key statistics
Satellite GSTAR 4 at a glance.
Uptime
12650
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
OTHER
Other
Inclination
14.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for GSTAR 4.
Object identification
Identified? True
Debris? False
Object name: GSTAR 4
International designator: 1990-100B
Object number (NORAD): 20946
Object ID (CCSDS): 20946
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1452.463 minutes
Inclination: 14.0415 deg
SMA: 42484.468 km
Apoapsis: 36122.932 km
Periapsis: 36089.735 km
RAAN: 12.6146 deg
Eccentricy: 0.0003907
Argument of periapsis: 338.9905 deg
Mean anomaly: 21.905 deg
Mean motion: 0.99141955 rev/day
Mean motion (dot): -0.00000009 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: July 7, 2025, 6:34 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 7, 2025, 12:13 a.m. UTC
TLE line 0: 0 GSTAR 4
TLE line 1: 1 20946U 90100B 25188.00934536 -.00000009 00000-0 00000-0 0 9995
TLE line 2: 2 20946 14.0415 12.6146 0003907 338.9905 21.9050 0.99141955 43393
Live tracking on map
Real-time ground track for satellite GSTAR 4.
In-orbit conjunctions
There are no conjunctions computed for GSTAR 4, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Geostationary communications satellites
GSTAR 4 was lifted into orbit during the mission ‘Ariane 42P | Satcom C1 & GStar 4’, on board a Ariane 42P space rocket.
The launch took place on Nov. 20, 1990, 11:11 p.m. from Ariane Launch Area 2.
For more information about the launch, click the button.
Ariane 42P | Satcom C1 & GStar 4
Agency: N/A
Status: Launch Successful
Launch date: Nov. 20, 1990, 11:11 p.m. UTC
Rocket: Ariane 42P
Launch pad: Ariane Launch Area 2
Location: Guiana Space Centre, French Guiana
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
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