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Questions tagged [tdrss]

NASA's Tracking and Data Relay Satellite System - a network of satellites in geosynchronous orbit used to facilitate communications with and tracking of spacecraft in lower orbits.

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Would communication with Houston still be possible in a LEO debris cascade?

In the film Gravity (2013), the astronauts on STS-157 & the ISS lose communications with mission control in Houston, supposedly due to the chain reaction of debris collisions taking out ...
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1answer
124 views

What nodes were used to send a NASA selfie from Antarctica to the ISS?

The November 29, 2017 NASA video Future-Proofing the Interplanetary Internet says: In a recent demonstration of the technology, NASA sent a selfie from Antarctica to the space station, making ...
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1answer
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Why do the geosynchronous TDRS satellites have this distribution of inclinations?

From the Tracking and Data Relay Satellite System (TDRSS) option on Celestrak's NORAD Two-Line Element Sets Current Data TLE page I've compiled current TLE ...
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1answer
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Has TDRS-13 officially graduated from “TDRS school” (entered into service)?

According to Wikipedia: TDRS-M, to be renamed TDRS-13 upon entry into service, is an American communications satellite operated by NASA as part of the Tracking and Data Relay Satellite System. The ...
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Does the TDRS user segment ever provide network functionality beyond being “customers”?

Celestrak's NORAD Two-Line Element Sets Current Data TLE page has many pre-defined categories for quick access for groups of spacecraft that share similar characteristics. I clicked on the ...
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2answers
389 views

Frequency and modulation mode(s) for the SpaceX Tesla roadster mass in space

As an Electrical Engineer (emphasis in RF and radar, class of '74) who has followed the space program(s) since Mercury, and a prior flight test telemetry engineer, I was wondering if anyone knows what ...
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1answer
211 views

Is TDRS-M (TDRS-13) where it's supposed to be?

edit: Status 2018-Jan-01 inclination still about 7 degrees, location still not listed in Wikipedia. This question got me thinking about the location of active TDRS satellites, and the newest ...
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1answer
1k views

Do antennae on the ISS have to constantly move to maintain data links?

In this question and answer pair I see that the ISS can maintain data links to earth through direct access to ground stations as well as through the TDRSS geostationary satellite network. What kind ...
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Did SpaceX use TDRSS or USAF ground station to track Falcon 9 stage 2?

Which system did spacex rely to? Falcon, not dragon
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798 views

Commercial TDRSS alternatives?

NASA's Tracking and Data Relay Satellite System (TDRSS) is a space-based relay system at geostationary orbit. If one has, for instance, a LEO mission, and one's coverage requirements can not be met by ...