iowii .Jet Propulsion Lahorator California Institute ol lechnologv
A BSTRACTThe Multi-Angle Imaging Spectro-Radiometer (MISR is a push-broom instrument using nine cameras to collect data at moe different angles through the atmosphere. The science goals are to monitor global atmospheric particulates. cloud niovements, and vegetatie changes. The camera optomechanical requirements were: to operate within specification over a temperature range of ftC to I ftC: to survive a temperature range of' 40C to 80C: to survive launch loads and on-orbit radiation: to be ioncontaminating both to itself and to other instruments: and to remained aligned though the mission. hach camera has its own lens, detector, and thermal control. The lenses are refractive: thus passive thermal fbcus conipenisation and maintaining lens positioning and centering were dominant issues. Because of the number of' cameras. modularit was stressed iii the design. This paper will describe the final design ot'the cameras, the driving design considerations. arid the results of qualification testing.Figure I, K)S-It RRA spacecraft s ith the Mulii-.\nglc Imaving Spectro-Radrometer instrument, I he nme camera Iiclds-ni-s iess ss tb tour spectral ss a ehands arc shosvn.
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