  The direct impact of the American spacecraft Lunar Prospector into the Moon
on July 31, 1999 was accompanied by seismic effects comparable to a big
moonquake. Such an impact can be accompanied by radio seismic radiation of the
lunar surface layers. For registration of the lunar radio seismic radiation
after the Lunar Prospector impact radio observations of the Moon on two 64-m
radio telescopes at 13, 21, and 90 cm were conducted on July 30 - August 2,
1999. Changes of the radio temperature of the south polar regions after the
impact were detected. The Lunar Prospector impact may have been the cause of
these changes. Recommendations about the registration of the lunar radio
seismic radiation during the Leonid meteor showers are given.

Astrophysics