Intelsat III F-7
{{Short description|Communications satellite}}
{{Use American English|date=May 2018}}
{{Infobox spaceflight
| name = Intelsat III F-7
| image =
| image_caption =
| mission_type = Communications
| operator = Intelsat
| website =
| COSPAR_ID = 1970-032A
| SATCAT = 04376
| mission_duration = 5 years (planned)
| spacecraft_bus =
| spacecraft_type =
| manufacturer = TRW Inc.
| BOL_mass = {{convert|151|kg|lb}}
| launch_mass = {{convert|647|kg|lb}}
| dimensions =
| power = 183 W
| launch_date = {{start-date|April 23, 1970, 00:46:12|timezone=yes}} UTC{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|first=Jonathan|last=McDowell|work=Jonathan's Space Page|access-date=May 29, 2018}}
| launch_rocket = Thor Delta M 559/D78
| launch_site = Cape Canaveral LC-17A
| launch_contractor =
| disposal_type =
| deactivated =
| orbit_epoch = May 29, 2018{{cite web|url=http://www.n2yo.com/satellite/?s=4376|title=INTELSAT 3 F-7|first=N2YO.com|last=Real Time Satellite Tracking|access-date=May 29, 2018}}
| orbit_reference = Geocentric
| orbit_regime = Geostationary
| orbit_periapsis = {{convert|35,760.4|km|mi|sp=us}}
| orbit_apoapsis = {{convert|35,789.9|km|mi|sp=us}}
| orbit_semimajor = {{convert|42,146|km|mi|sp=us}}
| orbit_period = 1,435.1 minutes
| orbit_longitude = 124° W {{small|(current position)}}
| apsis = gee
| trans_band =
| trans_frequency =
| trans_bandwidth =
| trans_capacity =
| trans_coverage =
| trans_TWTA =
| trans_EIRP =
| trans_HPBW =
| programme = Intelsat III
| previous_mission = Intelsat III F-6
| next_mission = Intelsat III F-8
}}
Intelsat III F-7 was an American communications satellite owned by Intelsat. The satellite had an estimated useful life of 5 years.
Design
The seventh of eight Intelsat III satellites to be launched, Intelsat III F-7 was built by TRW. It was a {{convert|647|kg|lb|adj=on}} spacecraft equipped with two transponders to be powered by body-mounted solar cells generating 183 watts of power.{{cite encyclopedia|url=http://www.astronautix.com/craft/intlsat3.htm|archive-url=https://web.archive.org/web/20020223094128/http://www.astronautix.com/craft/intlsat3.htm|url-status=dead|archive-date=February 23, 2002|title=Intelsat 3|first=Mark|last=Wade|encyclopedia=Encyclopedia Astronautica|access-date=May 29, 2018}} It had a design life of five years and carried an SVM-2 apogee motor for propulsion.
Launch
Intelsat III F-7 was launched by a Delta M rocket, flying from Launch Complex 17A at the Cape Canaveral Air Force Station.
See also
{{Portal|Spaceflight}}
References
{{reflist|2}}
{{US-spacecraft-stub}}
{{Intelsat}}
{{Orbital launches in 1970}}