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GSFC Refined World Maps on Microfilm


Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)

Time span: 1962-09-29 to 1971-06-20


These data, prepared at GSFC, are listings of satellite position for each minute (4-min intervals after September 13, 1970) of Greenwich mean time. Position is described by geographic latitude, longitude, and altitude above an ellipsoid of revolution closely approximating the mean earth surface. Position data for special times (equator crossing, the northernmost and southernmost points, and sun entrance and exit) are also listed. The listings are organized into "books" of about 2 weeks of position vs time data headed by orbit elements and constants used in the computation of the positions. As extended world maps are prepared, the refined maps duplicating this information are normally discarded. Hence, if times required are not found in this data set, see data set 62-049A-00C. Time coverage of data set 62-049A-00B is continuous from launch to July 1, 1964. Subsequent time coverage is not continuous.

Alternate Names

  • Refined World Maps


  • Ancillary: Ephemeris/Orbit/Attitude


  • 62-049A-00B

Additional Information


Questions and comments about this data collection can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Mr. Harry C. PritchettGeneral ContactNASA Goddard Space Flight Center
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