This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com
Class: Communications. Nation: International. Agency: ITSO, Inmarsat. Manufacturer: Ford Aerospace. The last five of the nine spacecraft in this block carry a maritime mobile payload (seven additional transponders) for lease by Inmarsat. Spacecraft: 3-axis stabilised to 0.5 deg using momentum wheels. Hydrazine propulsion system. Passive thermal control. Dual solar arrays provide 1800 W BOL, NiCd or NiH batteries. Payload: 21 C-Band and 4 Ku-Band transponders.12000 voice circuits and 2 TV channels.
Financial/Operational:
5f series
SpecificationDesign Life: 7 years. Total Length: 2.0 m. Maximum Diameter: 1.8 m. Total Mass: 2,000 kg.
Intelsat 5 Chronology
06 December 1980
Intelsat 5 F-2 Program: Intelsat. Launch Site: Cape Canaveral . Launch Vehicle: Atlas Centaur SLV-3D. Mass: 2,000 kg. Perigee: 35,769 km. Apogee: 35,804 km. Inclination: 4.6 deg. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle put payload into geosynchronous transfer orbit
23 May 1981
Intelsat 5 F-1 Program: Intelsat. Launch Site: Cape Canaveral . Launch Vehicle: Atlas Centaur SLV-3D. Mass: 1,928 kg. Perigee: 35,772 km. Apogee: 35,804 km. Inclination: 5.1 deg. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle put payload into geosynchronous transfer orbit
15 December 1981
Intelsat 5 F-3 Program: Intelsat. Launch Site: Cape Canaveral . Launch Vehicle: Atlas Centaur SLV-3D. Mass: 1,870 kg. Perigee: 35,770 km. Apogee: 35,802 km. Inclination: 4.1 deg.
05 March 1982
Intelsat 5 F-4 Program: Intelsat. Launch Site: Cape Canaveral . Launch Vehicle: Atlas Centaur SLV-3D. Mass: 1,928 kg. Perigee: 35,776 km. Apogee: 35,798 km. Inclination: 4.1 deg. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle put payload into geosynchronous transfer orbit
28 September 1982
Intelsat 5 F-5 Program: Intelsat. Launch Site: Cape Canaveral . Launch Vehicle: Atlas Centaur SLV-3D. Mass: 2,000 kg. Perigee: 35,771 km. Apogee: 35,799 km. Inclination: 3.6 deg.
19 May 1983
Intelsat 5 F-6 Program: Intelsat. Launch Site: Cape Canaveral . Launch Vehicle: Atlas Centaur SLV-3D. Mass: 1,928 kg. Perigee: 35,772 km. Apogee: 35,805 km. Inclination: 2.5 deg. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle put payload into geosynchronous transfer orbit
19 October 1983
Intelsat 5 F-7 Program: Intelsat. Launch Site: Kourou . Launch Vehicle: Ariane 1. Mass: 1,928 kg. Perigee: 35,759 km. Apogee: 35,814 km. Inclination: 3.0 deg. Ariane third stage. Launched by European Space Agency. Launch time 0045:36 GMT. Launched spacecraft Intelsat V F7.
05 March 1984
Intelsat 5 F-8 Program: Intelsat. Launch Site: Kourou . Launch Vehicle: Ariane 1. Mass: 1,928 kg. Perigee: 35,773 km. Apogee: 35,800 km. Inclination: 2.4 deg.
09 June 1984
Intelsat 5 F-9 Program: Intelsat. Launch Site: Cape Canaveral . Launch Vehicle: Atlas G. FAILURE: Centaur structural failure. . Mass: 1,091 kg. Perigee: 180 km. Apogee: 1,227 km. Inclination: 29.2 deg. Failure of Centaur upper stage left stranded in useless orbit. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle was to have put payload into geosynchronous transfer orbit
Bibliography:- 2 - McDowell, Jonathan, The United Nations Registry of Space Objects, Harvard University, 1997. HTML when accessed: http://hea-www.harvard.edu/QEDT/jcm/space/un/un.html
- 6 - JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. HTML when accessed: http://msl.jpl.nasa.gov/home.html
- 279 - McDowell, Jonathan, Launch Log, October 1998. HTML when accessed: http://hea-www.harvard.edu/~jcm/space/log/launch.html
Back to Index
Last update 12 March 2001.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .