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This spacecraft was one of a series of automated astromonical observatories which were ground controlled in orientation and were placed in a low earth orbit. This spacecraft carried a moderate resolution scanning spectrometer (1100-4267 A) system using a relatively fast 38-in. cassegrain telescope. This mission failed when the shroud failed to separate.

Alternate Names

  • Orbiting Astronomical Observatory B
  • PL-694B

Facts in Brief

Launch Date: 1970-11-30
Launch Vehicle: Atlas-Centaur
Launch Site: Cape Canaveral, United States
Mass: 2122.8 kg

Funding Agency

  • NASA-Office of Space Science Applications (United States)


  • Astronomy

Additional Information

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



NameRoleOriginal AffiliationE-mail
Dr. Nancy G. RomanProgram ScientistNASA Headquarters
Dr. James E. Kupperian, Jr.Project ScientistNASA Goddard Space Flight Center
Mr. Joseph PurcellProject ManagerNASA Goddard Space Flight Center0
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