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Laser Retro-Reflector Lunar Libration Data

NSSDCA ID: PSCM-00020

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

Time span: 1973-01-08 to 1977-09-14

Description

These lunar libration data are on binary magnetic tape created on a UNIVAC computer. There are five types of records on the tape. The first is a header containing start time (Julian day), stop time and mesh size. The second record is a text containing UNIVAC filldata identifying the data on the tape. The third and fourth records contain the parameter names and values, respectively. The remaining records contain reference time of difference lines, mesh spacing used in difference lines, and an array of position (angle) at reference time, derivation of angle and sum of derivation for 12 counts.

Discipline

  • Planetary Science: Celestial Mechanics

Old NSSDCA IDs

  • 69-059C-04D
  • 69-059C-04E
  • 71-008C-09B
  • 71-008C-09C
  • 71-063C-08B
  • 71-063C-08C
  • 73-001A-01B

Additional Information

Spacecraft

Experiments

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

 

Personnel

NameRoleOriginal AffiliationE-mail
Dr. James G. WilliamsGeneral ContactNASA Jet Propulsion Laboratoryjwilliams@mail2.jpl.nasa.gov

Related Information

Lunar Ranging at McDonald Observatory

Lunar Ranging at McDonald Observatory

McDonald Laser Ranging Station (University of Texas)
Current Lunar Laser Ranging Data Sets

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