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!["6\times]("eq-00001.gif")
6 x 10[?]6 cm[?]2 s[?]1 (100-500 MeV), which corresponds to ~12 times the lunar albedo, and may be detectable by the forthcoming Gamma-Ray Large Area Space Telescope (GLAST). If detected by GLAST, it can provide unique direct information about the number of small bodies in each system that is difficult to assess by any other method. In addition, the KBO albedo flux can be used to probe the spectrum of CR nuclei at close-to-interstellar conditions. The orbits of MBAs, Trojans, and KBOs are distributed near the ecliptic, which passes through the Galactic center and high Galactic latitudes. Therefore, the asteroid g-ray albedo has to be taken into account when analyzing weak g-ray sources close to the ecliptic, especially near the Galactic center, and signals at high Galactic latitudes, such as the extragalactic g-ray emission. The asteroid albedo spectrum also exhibits a 511 keV line due to secondary positrons annihilating in the rock. This may be an important and previously unrecognized celestial foreground for the International Gamma-Ray Astrophysics Laboratory (INTEGRAL) observations of the Galactic 511 keV line emission including the direction of the Galactic center.