MODELING OF THERMAL CONDITIONS AND THERMAL ABERRATIONS OF A SMALLSIZED SPACE TELESCOPE
Saint Petersburg National Research University of Information Technologies, Mechanics and Optics; postgraduate
A. V. Demin
ITMO University; Professor
S. I. Hankov
Military Space Academy n.a. A.F. Mozhaisky, Saint Petersburg, Russia; chief staff scientist
S. I. Zhukov
OAO “LOMO”, St. Petersburg; Chief Specialist
Abstract. A method for calculation of thermal condition and heat-induced aberration of the electro-optical system for remote sensing of the Earth from a micro satellite is presented. Result of calculations demonstrates that the temperature increments of the telescope elements and the thermo-optical aberrations are proportional to the operational mode duration. The chosen thermo-mechanical scheme is shown to afford the telescope thermal stability during operation.
Keywords: Earth remote sensing, optical-electronic systems, microsatellite, radiative heat transfer, thermo-optical aberration.