The micrometeoroid experiments flown on all five Lunar Orbiter spacecraft provided measurements in the near-lunar environment of the rate of penetration by meteoroids of 0.025-millimeter beryllium copper detectors. Each spacecraft carried twenty detectors, totaling an effective exposed area of 0.186 square meter. The spacecraft flew both equatorial and polar orbits at altitudes ranging from 30 … Continue reading Lunar Orbiter Micrometeoroid Experiments