ANALYSIS OF SATELLITE TIME DATA

Abstract

Satellites 1961 omicron 1, 1961 alpha eta 1, and 1962 beta mu 1 are instrumented to supply time data as well as doppler data. Satellite time markers are generated in these satellites by counting down the satellite's stable oscillator and producing a unique modulating on the doppler carriers each time a fixed number of oscillator cycles have occurred. The TRANET doppler receiving stations are equipped to recognize this modulation and to automatically punch (on the same paper tape that doppler data is punched) the station's time (WWV) at which this special modulation is received. After appropriate calibration, this time data can serve as a secondary time standard. This report presents the information required to recognize and process satellite time data and to determine the WWV time at which the satellites transmitted satellite time markets.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1964
Accession Number
AD0464355

Entities

People

  • W. H. Guier

Organizations

  • Johns Hopkins University

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Artificial Satellites
  • Clocks
  • Equations
  • Experimental Data
  • Frequency
  • Iterations
  • Measurement
  • Modulation
  • Oscillators
  • Personality
  • Physics Laboratories
  • Satellite Orbits
  • Standards
  • Temperature Control
  • Time Intervals
  • Time Standards

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Space Exploration and Orbital Mechanics.
  • Speech Processing/Speech Recognition.

Technology Areas

  • Space
  • Space - Satellites