Key statistics
Satellite INMARSAT 3-F1 at a glance.
Uptime
10754
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
OTHER
Other
Inclination
10.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for INMARSAT 3-F1.
Object identification
Identified? True
Debris? False
Object name: INMARSAT 3-F1
International designator: 1996-020A
Object number (NORAD): 23839
Object ID (CCSDS): 23839
Country: INTERNATIONAL MARITIME SATELLITE ORGANIZATION (INMARSAT) (IM)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1440.011 minutes
Inclination: 10.0162 deg
SMA: 42241.305 km
Apoapsis: 35896.366 km
Periapsis: 35829.973 km
RAAN: 49.1266 deg
Eccentricy: 0.00078587
Argument of periapsis: 139.7015 deg
Mean anomaly: 59.8225 deg
Mean motion: 0.99999258 rev/day
Mean motion (dot): 0.00000041 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Sept. 11, 2025, 10:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 11, 2025, 4:43 a.m. UTC
TLE line 0: 0 INMARSAT 3-F1
TLE line 1: 1 23839U 96020A 25254.19687987 .00000041 00000-0 00000-0 0 9990
TLE line 2: 2 23839 10.0162 49.1266 0007859 139.7015 59.8225 0.99999258107469
Live tracking on map
Real-time ground track for satellite INMARSAT 3-F1.
In-orbit conjunctions
There are no conjunctions computed for INMARSAT 3-F1, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Launched in 1996-8, the Inmarsat-3s were built by Lockheed Martin Astro Space (now Lockheed Martin Missiles & Space) of the USA, responsible for the basic spacecraft, and the European Matra Marconi Space (now Astrium), which developed the communications payload.
INMARSAT 3-F1 was lifted into orbit during the mission ‘Atlas IIA | INMARSAT III F-1’, on board a Atlas IIA space rocket.
The launch took place on April 3, 1996, 11:01 p.m. from Launch Complex 36A.
For more information about the launch, click the button.
Atlas IIA | INMARSAT III F-1
Agency: N/A
Status: Launch Successful
Launch date: April 3, 1996, 11:01 p.m. UTC
Rocket: Atlas IIA
Launch pad: Launch Complex 36A
Location: Cape Canaveral SFS, FL, USA
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Latest news about this satellite
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