Variation in the number of meteoroid impacts on the Moon with lunar phase
Abstract
Data from the ALSEP 12 and 14 seismometers of the Apollo Passive Seismic Experiment Network are used to determine the statistics of the mass distribution of meteoroids and their direction of approach in near earth space. The cumulative number of meteoroid impacts detected is analyzed as a function of phase of the moon, taking into account the sensitivity of the seismometer and the seismic wave propagation characteristics of the moon. We conclude that, in the mass range studied (>5 kg), (a) most meteoroid orbits lie near the plane of the ecliptic, (b) the orbits have aphelia between 2 and 5 a.u., and (c) the mass distribution statistics are described by the relation log_{10} n = B + G log_{10} m, where n = number of meteoroids of mass m grams or greater, B ∼ 0.9 and G = 1.5.
 Publication:

Geophysical Research Letters
 Pub Date:
 July 1975
 DOI:
 10.1029/GL002i007p00273
 Bibcode:
 1975GeoRL...2..273D
 Keywords:

 Lunar Surface;
 Mass Distribution;
 Meteorite Collisions;
 Meteoroids;
 Seismic Waves;
 Apollo 12 Flight;
 Apollo 14 Flight;
 Data Acquisition;
 EarthMoon System;
 Statistical Analysis;
 Lunar and Planetary Exploration;
 Planetology: Meteoritics;
 Seismology: Seismic sources (mechanisms;
 magnitude;
 frequency spectrum;
 and time distribution);
 Seismology: General or miscellaneous