ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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12
Issue
vol 59 / DECEMBER, 2016
Article
UDC 621.373.526

MODELING OF THERMAL CONDITIONS AND THERMAL ABERRATIONS OF A SMALLSIZED SPACE TELESCOPE

Y. . Bayova
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.