Key statistics
Satellite OPTUS C1 at a glance.
Uptime
8221
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
OTHER
Other
Inclination
6.4
Latest
Satellite identification and parameters
Extended collection of information and parameters for OPTUS C1.
Object identification
Identified? True
Debris? False
Object name: OPTUS C1
International designator: 2003-028B
Object number (NORAD): 27831
Object ID (CCSDS): 27831
Country: AUSTRALIA (AUS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1436.133 minutes
Inclination: 6.4221 deg
SMA: 42165.441 km
Apoapsis: 35813.158 km
Periapsis: 35761.454 km
RAAN: 71.6859 deg
Eccentricy: 0.00061311
Argument of periapsis: 191.3485 deg
Mean anomaly: 7.201 deg
Mean motion: 1.00269256 rev/day
Mean motion (dot): -0.00000145 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 2:14 a.m. UTC
TLE line 0: 0 OPTUS C1
TLE line 1: 1 27831U 03028B 25346.09313278 -.00000145 00000-0 00000-0 0 9998
TLE line 2: 2 27831 6.4221 71.6859 0006131 191.3485 7.2010 1.00269256 51182
Live tracking on map
Real-time ground track for satellite OPTUS C1.
In-orbit conjunctions
There are no conjunctions computed for OPTUS C1, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Optus and Defence C1 is a relay platform in geostationary orbit at 156 degrees East. It is one of the most advanced communications satellites ever built. BSAT-2C is a geostationary communication satellite for B-SAT.
OPTUS C1 was lifted into orbit during the mission ‘Ariane 5 G | Optus and Defence C1 & BSAT-2c’, on board a Ariane 5 G space rocket.
The launch took place on June 11, 2003, 10:38 p.m. from Ariane Launch Area 3.
For more information about the launch, click the button.
Ariane 5 G | Optus and Defence C1 & BSAT-2c
Agency: N/A
Status: Launch Successful
Launch date: June 11, 2003, 10:38 p.m. UTC
Rocket: Ariane 5 G
Launch pad: Ariane Launch Area 3
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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