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28-Sec Resolution Plasma Parameters


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

Time span: 1969-11-19 to 1976-03-26


These tapes contain the highest time resolution plasma data available from this experiment (28 sec per spectrum). The tapes are written in BCD on a UNIVAC 1108 computer. Physical records are blocked to 384 words, at 72 BCD characters to every 12 words. Contained in each record are -- time, proton density, alpha-to-proton ratio, bulk speed, angle of flow, most probable thermal speed, and various housekeeping and fit parameters relating to the reliability of the calculated plasma parameters. The first record(s) on each tape contains labeling information to identify the tape contents to a user.

During the local lunar night there is no solar wind signal so there are data gaps of about 15 days each lunation.

These data have been read and reformatted as part of the Lunar Data Project (see links below).

Alternate Names

  • 28-sec Plasma Param


  • Planetary Science: Fields and Particles
  • Space Physics: Heliospheric Studies


  • 69-099C-02A

Additional Information



Questions and comments about this data collection can be directed to: Dr. H. Kent Hills



NameRoleOriginal AffiliationE-mail
Dr. Marcia M. NeugebauerData ProviderNASA Jet Propulsion
Dr. Marcia M. NeugebauerGeneral ContactNASA Jet Propulsion

Related Data/Information at NSSDCA

Apollo 12 Solar Wind Spectrometer Hour Average Data Record
Apollo 12 Solar Wind Spectrometer 28 s Average Data Record
Apollo 15 Solar Wind Spectrometer Hour Average Data Record
Apollo 15 Solar Wind Spectrometer 28s Average Data Record

Related Information at NSSDCA

Apollo landing sites and ALSEP and LRRR locations - and information on the modified DMA/603 control network

Lunar Data Project
Apollo Home Page

Solar Wind Spectrometer Available On-line

Solar Wind Spectrometer and other lunar data on CDAWeb
Solar Wind Spectrometer and other Apollo data at the Planetary Data System

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