Thermal Design of LISS-4 Camera in Resourcesat-1 Spacecraft
Debasis Chakrabortya, Abhijit Avinash Adonib, D. R. Bhandaric, K. Badari Narayanad, S. G. Barvee and H. R. Sreenivasamurthyf
TSG, ISRO Satellite Centre Bangalore, Karnataka, 560 017, India.
adebasis@isac.gov.in
babhijit@isac.gov.in
cbhandari@isac.gov.in
dkbn@isac.gov.in
esgbarve@isac.gov.in
fhrsmurty@isac.gov.in
ABSTRACT
Resourcesat-1 is a 3-axis stabilised remote sensing satellite, with a sun-synchronous orbit, for mapping of Earth resources with enhanced capabilities and improved resolution. There are four payloads on the satellite viz. - LISS-4, LISS-3, and AWIFS- A & B. LISS-4 payload provides panchromatic terrestrial image along the ground trace of the satellite. This camera can be steered up to ±26°C across the track. The spacecraft has completed 5yrs of operation and the thermal control has performed satisfactorily over this period, which is also the designated life for this mission. This paper presents the thermal design and analysis of LISS-4 (multispectral) camera and also compares the predictions with on-orbit observations.
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