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Preliminary Data Submission - Plots, Lists, Scan-Track Map, Day-Date Tables


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

Time span: 1977-08-14 to 1979-01-13


This data set is the reduced data base for the HEAO A-4 experiment, on microfiche cards. It includes plots, source listings, scan-track maps, conversion tables, and appropriate documentation. No magnetic tape version is available. The plots are 10-day data summations of the background-subtracted count rate over each detector's energy range, binned into 1-deg azimuth bins around the spacecraft scan plane. Maps are included of the spacecraft scan track as a function of time. Tables are provided of the detector properties and of day number-date conversions. Source lists can be related to the plots for identification of signal peaks. For information on the A-4 main data base, contact Dr. Duane E. Gruber, C-011, Center for Astrophysics and Space Astronomy, University of California-San Diego, La Jolla, CA 92093.

Alternate Names

  • Data Plots and Tables


  • Astronomy: Gamma Ray


  • 77-075A-04A

Additional Information



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



NameRoleOriginal AffiliationE-mail
Dr. William A. BaityData ProviderUniversity of California, San
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