Zaitsev S. The negative polarization of the scattered radiation of selected atmosphereless Solar System bodies.

The work is devoted to investigation of the polarization characteristics of radiation satellites of Jupiter, Saturn and E-type asteroids and analysis of their physical characteristics. Polarization opposition effect in a form of narrow secondary minimum of negative polarization at small phase angles was confirmed for Jupiter's moons Io, Europa, asteroids 44 Nysa and 64 Angelina. Polarization opposition effect in a form of asymmetrical negative polarization branch was confirmed for Jupiter’s moon Ganymede and trailing hemisphere of Saturn's moon Iapetus. It was shown that polarization opposition effect is absent for moderate-albedo satellite Callisto and leading hemisphere of Saturn’s moon Iapetus. Phase dependences of polarization of Saturn's Enceladus, Dione and Rhea were obtained. Iapetus and Rhea show longitude dependences of polarization which are in agreement with distribution of albedo over their surfaces. It was shown that phase dependences of polarization for satellites of Saturn were observed in the form of asymmetric curve with a minimum at low phase angles, and their form and parameters differ on ones for Jupiter's moons.It may indicate stratification of polarimetric properties of objects in the solar system with distance from the sun. We have compiled the database of planetary satellite polarimetry which is a part of an international database of NASA Planetary Data System. The software required for processing the results of polarimetric observations search and creating maps of the configuration of the satellites of Jupiter, Saturn and Uranus was developed.