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Moonquake Expanded Scale Playouts on 16-mm Microfilm


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

Time span: 1972-05-27 to 1974-04-23


This data set consists of 16-mm microfilm of expanded time scale playouts of selected moonquakes. The playouts are expanded so that 1 minute of data is displayed in 10 cm. These data are not processed (e.g., no filtering, smoothing, signal averaging, etc.). The annotation format consists of year (in which the playouts begin), SKIP X MAG (C) (where SKIP equals the corresponding seismic event tape number, MAG equals a multiplicative factor which adjusts the signal amplitude of an event for plotting, and C equals the long-period (LP) component where X is LPX, Y is LPY, and Z is LPZ), the day of the year on which the playouts begin, and hr, min, sec, which is the universal time (ut) at which the playout begins. Time ticks are placed at 1-minute intervals. The time marks are not corrected for possible clock errors.

Alternate Names

  • Moonquake Expanded Scale Playouts


  • Planetary Science: Geology and Geophysics


  • 72-031C-01N

Additional Information



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



NameRoleOriginal AffiliationE-mail
Dr. Frederick K. DuennebierData ProviderUniversity of Texas,
Dr. Frederick K. DuennebierGeneral ContactUniversity of Texas,
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