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TDRS-6

American communications satellite

Field	Value
name	TDRS-6
image	1993 s54 TDRS-F.jpg
image_caption	TDRS-F being deployed from Endeavour
mission_type	Communication
operator	NASA
COSPAR_ID	1993-003B
SATCAT	22314
mission_duration	Planned: 10 years
Elapsed:
spacecraft_bus	TDRS
manufacturer	TRW
launch_mass	2108 kg
dimensions	17.3 xx
power	1700 watts
launch_date	UTC
launch_rocket
STS-54 / IUS
launch_site	Kennedy Space Center LC-39B
launch_contractor	Rockwell International
deactivated
orbit_epoch	14 January 1993
orbit_reference	Geocentric
orbit_regime	Geostationary
orbit_longitude	46.0° West (1994–1996)
47.0° West (1996–2005)
174.0° West (2005–)
apsis	gee
programme	Tracking and Data Relay Satellite
First-generation
previous_mission	TDRS-5
next_mission	TDRS-7

Elapsed:

STS-54 / IUS

47.0° West (1996–2005) 174.0° West (2005–)

First-generation TDRS-6, known before launch as TDRS-F, is an American communications satellite, of first generation, which is operated by NASA as part of the Tracking and Data Relay Satellite System. It was constructed by TRW, and is based on a custom satellite bus which was used for all seven first generation TDRS satellites.

History

TDRS-F was deployed from during the STS-54 mission in 1993. Endeavour was launched from Launch Complex 39B at the Kennedy Space Center, at 13:59:30 UTC on 13 January 1993. TDRS-F was deployed from Endeavour around six hours after launch, and was raised to geosynchronous orbit by means of an Inertial Upper Stage.

Deployment

The two-stage solid-propellent Inertial Upper Stage made two burns. The first stage burn occurred shortly after deployment from Endeavour, and placed the satellite into a geosynchronous transfer orbit (GTO). At 02:26 UTC on 14 January 1993, it reached apogee, and the second stage fired, placing TDRS-F into geosynchronous orbit. At this point, it received its operational designation, TDRS-6.

Operation

In 1994, it was placed at a longitude 46.0° West of the Greenwich Meridian, to serve as an on-orbit spare. In 1996, it was moved to 47.0° West, where it remained until 2005, when it was repositioned to 174.0° West, where, , it was used to provide communications with spacecraft in Earth orbit, such as the International Space Station (ISS) and spacecraft bringing astronauts to the ISS.

Location of TDRS as of 26 May 2020

References

(1 July 2009). "UCS Satellite Database". Union of Concerned Scientists.
"NASA - NSSDCA - Spacecraft - Trajectory Details".
Krebs, Gunter. "TDRS 1, 2, 3, 4, 5, 6". Gunter's Space Page.
McDowell, Jonathan. "Launch Log". Jonathan's Space Page.
McDowell, Jonathan. "Index". Jonathan's Space Page.
"TDRS 6". TSE.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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