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Updates on the Tracking and Data Relay Satellite (TDRS) Fleet
October 22, 2013

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NASA accepted ownership of its newest Tracking and Data Relay Satellite (TDRS), TDRS-K, in mid-August and was renamed TDRS-11 shortly thereafter. TDRS-11 is the first of the third generation satellites. Four first generation and three second generation satellites make up the rest of the TDRS fleet.

On September 24, TDRS-11 arrived at its operational location of 171°W, which is in between TDRS-10 and TDRS-5 above the Pacific Ocean. TDRS-11 began the final phase of Initial Operations Capability (IOC) testing on September 30 and expected to be completed by November 30, when it will be placed into service. The launch of TDRS-L is currently scheduled for January 23, 2014.

› Space Network
› Tracking and Data Relay Satellite (TDRS)
› TDRS Fleet

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The Tracking and Data Relay Satellite constellation sits at geosynchronous orbit.
The Tracking and Data Relay Satellite constellation sits at geosynchronous orbit.
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The Space Network consists of the space segment (Tracking and Data Relay Satellites) and the ground segment (antennas).
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Page Last Updated: June 3rd, 2014
Page Editor: Thuy Mai