SVN 9 End-Of-Life Testing

Abstract

SVN 9 was a GPS Block I research and development satellite. When it was launched in June of 1984, questions regarding the future performance of atomic frequency standards in orbit remained to be answered. In March of 1994, after performing for twice its designed life span, SVN 9 was deactivated as a member of the operational GPS satellite constellation. During the next two months, US Air Force and Rockwell personnel performed various tests to determine just how well the atomic frequency standards had withstood ten years in the space environment. The results of these tests are encouraging. With a full constellation of Block II/IIA satellites on orbit, as well as the anticipated launch of the Block IIR satellites, results from the end of life testing will be helpful in assuring the continued success of the GPS program.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA515547

Entities

People

  • Gregory E. Hatten

Organizations

  • 2d Space Operations Squadron

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Clocks
  • Coefficients
  • Crystal Oscillators
  • Frequency Standards
  • Kalman Filters
  • Life Tests
  • Navigation
  • Payload
  • Range Finding
  • Satellite Constellations
  • Space Environments
  • Space Operations
  • Standards
  • Temperature Coefficients
  • Time Intervals
  • Two Dimensional

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • Systems Analysis and Design
  • Technical Research and Report Writing.

Technology Areas

  • Space
  • Space - Satellites