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Inmarsat
International Maritime Satellite Organization, an international agency developing and operating the earliest mobile communications satellite network. Initially for ships at sea, the system was later expanded to portable satellite phones.

Country: International. Spacecraft: Intelsat 5, AS 4000, Eurostar 1000, Eurostar 3000. Launch Vehicles: Proton-K/DM-2, Ariane 44LP, Delta 6925, Ariane 44L, Atlas IIA, Zenit-3SL, Atlas V 431. Launch Sites: Cape Canaveral, Baikonur, Kourou, Kiritimati. Agency: Toulouse, Inmarsat, RCA, EADS Astrium. More at: 8965.



1990 October 30 - . 23:16 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Delta 6925.
  • Inmarsat 2 F1 - . Mass: 1,385 kg (3,053 lb). Nation: International. Agency: Inmarsat. Manufacturer: Toulouse. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: Eurostar 1000. Spacecraft: Eurostar 1000. USAF Sat Cat: 20918 . COSPAR: 1990-093A. Apogee: 35,800 km (22,200 mi). Perigee: 35,775 km (22,229 mi). Inclination: 1.7000 deg. Period: 1,436.20 min.

    Mobile communications; 64.5 deg E. Positioned in geosynchronous orbit at 65 deg E in 1990-1996; 179 deg E in 1996-1999 As of 5 September 2001 located at 178.97 deg E drifting at 0.004 deg W per day. As of 2007 Mar 8 located at 143.50E drifting at 0.015W degrees per day.


1991 March 8 - . 23:03 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Delta 6925.
  • Inmarsat 2 F2 - . Mass: 1,385 kg (3,053 lb). Nation: International. Agency: Inmarsat. Manufacturer: Toulouse. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: Eurostar 1000. Spacecraft: Eurostar 1000. USAF Sat Cat: 21149 . COSPAR: 1991-018A. Apogee: 35,793 km (22,240 mi). Perigee: 35,780 km (22,230 mi). Inclination: 2.2000 deg. Period: 1,436.10 min.

    Mobile and maritime communications; 15.5 deg W. Positioned in geosynchronous orbit at 15 deg W in 1991-1996; 55 deg W in 1997-1999; DRIFT As of 6 September 2001 located at 97.95 deg W drifting at 0.002 deg W per day. As of 2007 Mar 11 located at 97.96W drifting at 0.006W degrees per day.


1991 December 16 - . 23:19 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44L.
  • Inmarsat 2 F3 - . Mass: 1,310 kg (2,880 lb). Nation: International. Agency: Inmarsat. Manufacturer: Toulouse. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: Eurostar 1000. Spacecraft: Eurostar 1000. USAF Sat Cat: 21814 . COSPAR: 1991-084B. Apogee: 35,795 km (22,241 mi). Perigee: 35,778 km (22,231 mi). Inclination: 1.4000 deg. Period: 1,436.10 min.

    Global maritime and mobile communications; 178 deg E. Positioned in geosynchronous orbit at 178 deg E in 1992-1997; 65 deg E in 1997-1999 As of 29 August 2001 located at 65.01 deg E drifting at 0.003 deg E per day. As of 2007 Mar 9 located at 155.28W drifting at 15.158W degrees per day.


1992 April 15 - . 23:25 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44L.
  • Inmarsat 2 F4 - . Mass: 1,385 kg (3,053 lb). Nation: International. Agency: Inmarsat. Manufacturer: Toulouse. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: Eurostar 1000. Spacecraft: Eurostar 1000. USAF Sat Cat: 21940 . COSPAR: 1992-021B. Apogee: 35,796 km (22,242 mi). Perigee: 35,780 km (22,230 mi). Inclination: 2.4000 deg. Period: 1,436.20 min.

    Stationed at 55 deg W. Positioned in geosynchronous orbit at 54 deg W in 1992-1997; 17 deg W in 1997-1999; DRIFT As of 4 September 2001 located at 109.00 deg E drifting at 0.022 deg W per day. As of 2007 Mar 10 located at 108.99E drifting at 0.020W degrees per day.


1996 April 3 - . 23:01 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas IIA.
  • Inmarsat 3 F1 - . Mass: 2,068 kg (4,559 lb). Nation: International. Agency: Inmarsat. Manufacturer: Lockheed. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: AS 4000. Spacecraft: AS 4000. USAF Sat Cat: 23839 . COSPAR: 1996-020A. Apogee: 35,806 km (22,248 mi). Perigee: 35,767 km (22,224 mi). Inclination: 0.0000 deg. Period: 1,436.10 min.

    Geostationary at 64.1E. Launch vehicle put payload into geosynchronous transfer orbit with RAAN Cntl trajectory option. Positioned in geosynchronous orbit at 64 deg E in 1996-1999 As of 5 September 2001 located at 63.98 deg E drifting at 0.003 deg E per day. As of 2007 Mar 10 located at 64.52E drifting at 0.006W degrees per day.


1996 September 6 - . 17:37 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K/DM-2.
  • Inmarsat 3 F2 - . Mass: 1,021 kg (2,250 lb). Nation: International. Agency: INMARSAT. Manufacturer: Lockheed. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: AS 4000. Spacecraft: AS 4000. USAF Sat Cat: 24307 . COSPAR: 1996-053A. Apogee: 35,807 km (22,249 mi). Perigee: 35,766 km (22,223 mi). Inclination: 2.5000 deg. Period: 1,436.10 min. Geostationary at 15.5W. Positioned in geosynchronous orbit at 15 deg W in 1996-1999 As of 4 September 2001 located at 15.48 deg W drifting at 0.005 deg W per day. As of 2007 Mar 7 located at 15.47W drifting at 0.007W degrees per day..

1996 December 18 - . 01:57 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas IIA.
  • Inmarsat 3 F3 - . Mass: 1,021 kg (2,250 lb). Nation: International. Agency: Inmarsat. Manufacturer: Lockheed. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: AS 4000. Spacecraft: AS 4000. USAF Sat Cat: 24674 . COSPAR: 1996-070A. Apogee: 35,807 km (22,249 mi). Perigee: 35,764 km (22,222 mi). Inclination: 0.0000 deg. Period: 1,436.00 min.

    Geostationary at 157.6E. Launch vehicle put payload into geosynchronous transfer orbit with RAAN Cntl trajectory option. Positioned in geosynchronous orbit at 178 deg E in 1997-1999 As of 5 September 2001 located at 178.02 deg E drifting at 0.006 deg W per day. As of 2007 Mar 10 located at 178.19E drifting at 0.002E degrees per day.


1997 June 3 - . 23:20 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44L.
  • Inmarsat 3 F4 - . Mass: 1,021 kg (2,250 lb). Nation: International. Agency: Inmarsat. Manufacturer: Lockheed. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: AS 4000. Spacecraft: AS 4000. USAF Sat Cat: 24819 . COSPAR: 1997-027A. Apogee: 35,805 km (22,248 mi). Perigee: 35,770 km (22,220 mi). Inclination: 0.0000 deg. Period: 1,436.10 min. Geosynchronous. Stationed over 54.0W Positioned in geosynchronous orbit at 54 deg W in 1997-1999 As of 5 September 2001 located at 53.97 deg W drifting at 0.004 deg W per day. As of 2007 Mar 10 located at 142.07W drifting at 0.000E degrees per day..

1998 February 4 - . 23:29 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44LP.
  • Inmarsat 3 F5 - . Mass: 1,021 kg (2,250 lb). Nation: International. Agency: Inmarsat. Manufacturer: RCA. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: AS 4000. Spacecraft: AS 4000. USAF Sat Cat: 25153 . COSPAR: 1998-006B. Apogee: 35,797 km (22,243 mi). Perigee: 35,775 km (22,229 mi). Inclination: 0.5000 deg. Period: 1,436.10 min. Geostationary at 25.0 degrees E. Positioned in geosynchronous orbit at 25 deg E in 1998-1999 As of 24 July 2001 located at 25.09 deg E drifting at 0.020 deg E per day. As of 2007 Mar 10 located at 25.07E drifting at 0.017W degrees per day..

2005 March 11 - . 21:42 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. Launch Pad: SLC41. LV Family: Atlas V. Launch Vehicle: Atlas V 431.
  • Inmarsat-4 F1 - . Payload: Inmarsat 4A / Eurostar 3000GM. Mass: 5,959 kg (13,137 lb). Nation: International. Agency: Inmarsat. Manufacturer: EADS Astrium. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: Eurostar 3000. Spacecraft: Eurostar 3000. USAF Sat Cat: 28628 . COSPAR: 2005-009A. Apogee: 36,011 km (22,376 mi). Perigee: 35,562 km (22,097 mi). Inclination: 3.0000 deg. Period: 1,436.10 min.

    Heaviest single payload to geosynchronous transfer orbit to that date. Delayed from October 2004, February 27, March 10, 2005. The satellite was to provide L-band mobile communications and wideband data transmission for Inmarsat's global network. As of 2007 Mar 11 located at 63.82E drifting at 0.000E degrees per day.


2005 November 8 - . 14:07 GMT - . Launch Site: Kiritimati. Launch Pad: 0.0 N x 154.0 W. Launch Platform: Odyssey. LV Family: Zenit. Launch Vehicle: Zenit-3SL.
  • Inmarsat-4 F2 - . Payload: Inmarsat 4B / Eurostar 3000GM. Mass: 5,958 kg (13,135 lb). Nation: International. Agency: Inmarsat. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: Eurostar 3000. Spacecraft: Eurostar 3000. USAF Sat Cat: 28899 . COSPAR: 2005-044A. Apogee: 35,965 km (22,347 mi). Perigee: 35,902 km (22,308 mi). Inclination: 2.9000 deg. Period: 1,443.60 min. The satellite was fitted with a 10 meter diameter antenna for mobile communications. Payload moved from Ariane 5 EC-A. Launch delayed from September, November 4 and 5, 2005. As of 2007 Mar 11 located at 52.87W drifting at 0.010W degrees per day..

2008 August 18 - . 22:43 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/39. LV Family: Proton. Launch Vehicle: Proton-M/Briz-M.
  • Inmarsat-4 F3 - . Payload: Eurostar 3000GM. Mass: 4,960 kg (10,930 lb). Nation: International. Agency: Inmarsat. Program: Inmarsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: Eurostar 3000. Spacecraft: Eurostar 3000. USAF Sat Cat: 33278 . COSPAR: 2008-039A. Apogee: 36,027 km (22,386 mi). Perigee: 36,009 km (22,374 mi). Inclination: 3.1000 deg. Period: 1,447.90 min. Maritime communications satellite with a solar panel span of 45 m, and a 10-m diameter L-band mobile communications antenna..


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