Electrization of the surface of low-orbiting small spacecraft “AIST”

The article presents the results of a space experiment that analyzed the process of electrization of low-orbit satellites. The research of the process of electrization took place on the small spacecraft "AIST-L" (flight) and "AIST-T" (technological) using the "Meteor” scientific equipment. The equipment includes multi-sensors that measure the temperature, illumination and electrification. The experiment revealed significant correlation between the process of differential charging of the apparatus and the external factors of space environment. The influence of   both controlled and uncontrolled flight modes on the electrization of low-orbit satellites was estimated. The mode of micro acceleration compensation is controlled by three orthogonally arranged solenoids. The data obtained make it possible to assess the density of the flow of electrons falling on the surface of the sensor, and confirm the mathematical model of spacecraft electrization proposed in the article and based on the method of integral equations. The model takes into account the effect of shielding the redistribution of charges on the surface of the spacecraft by plasma.