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TDRS-5

American communications satellite

TDRS-5

American communications satellite

FieldValue
nameTDRS-5
imageTDRS-E deployment from STS-43.jpg
image_captionTDRS-E aboard Atlantis during deployment
mission_typeCommunication
operatorNASA
COSPAR_ID1991-054B
SATCAT21639
mission_durationPlanned: 10 years
Elapsed:
spacecraft_busTDRS
manufacturerTRW
launch_mass2108 kg
dimensions17.3 xx
power1700 watts
launch_dateUTC
launch_rocket
STS-43 / IUS
launch_siteKennedy Space Center, LC-39A
launch_contractorRockwell International
deactivated
orbit_epoch3 August 1991
orbit_referenceGeocentric orbit
orbit_regimeGeostationary orbit
orbit_longitude174° West (1991–)
apsisgee
programmeTracking and Data Relay Satellite
First-generation
previous_missionTDRS-4
next_missionTDRS-6

Elapsed:

STS-43 / IUS

First-generation

TDRS-5, known before launch as TDRS-E, 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 is based on a custom satellite bus which was used for all seven first generation TDRS satellites.

History

The launch of STS-43, carrying TDRS-E

It was launched aboard during the STS-43 mission. Atlantis launched from Launch Complex 39A at the Kennedy Space Center on 2 August 1991 at 15:01:59 UTC (11:01:59 EDT). TDRS-E was deployed from Atlantis around six hours after launch, and was raised to geostationary orbit by means of an Inertial Upper Stage. It was the only TDRS satellite to be deployed from Atlantis.

Deployment

The twin-stage solid-propellent Inertial Upper Stage made two burns. The first stage burn occurred shortly after deployment, from Atlantis, and placed the satellite into a geostationary transfer orbit (GTO). Around six hours later, it reached apogee, and the second stage fired, placing TDRS-E into geosynchronous orbit. At this point, it received its operational designation, TDRS-5. It was placed at a position over the equator, 174.0° West of the Greenwich Meridian, from where it provides communications services to spacecraft in Earth orbit, including the Space Shuttle and International Space Station.

Location of TDRS as of 26 May 2020
Location of TDRS as of 18 March 2019

References

References

  1. (1 December 2002). "The TDRS-J satellite". Spaceflight Now.
  2. Krebs, Gunter. "TDRS 1, 2, 3, 4, 5, 6". Gunter's Space Page.
  3. McDowell, Jonathan. "Launch Log". Jonathan's Space Page.
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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