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Atmospheric Composition Mass Peak Summary Data


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

Time span: 1973-05-04 to 1973-09-03


This magnetic tape was copied at NSSDC from the experimenter's tapes and is written in IBM 360 standard binary. The record format is variable block size. A logical record is 324 bytes, and the block size is 3224 bytes. File 1 contains the summarized data from lunation 1 through lunation 5. File 2 contains lunations 6 through 9. Each record gives a summary of the data obtained from one mass spectrum, formatted in 80 binary words of 4 bytes each. Parameters included in each record are -- time of start of spectrum with January 1, 1973, set as day = 0, peak amplitudes for the following gas species (in amu) -- 4, 28, 32, 35, 36, 27, 38, 40, 44, and 92, gas concentrations for helium and argon, and solar ephemeris data for the Apollo 17 site.

Alternate Names

  • Mass Peak Summary Data


  • Planetary Science: Atmospheres


  • 72-096C-08A

Additional Information



Questions and comments about this data collection can be directed to: Dr. David R. Williams



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