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21 September 2012 How Earth atmospheric radiations may affect astronomical observations from low-orbit satellites
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Abstract
Telescopes are placed on spacecrafts to avoid the effects of the Earth atmosphere on astronomical observations (turbulence, extinction ...). Atmospheric effects however may subsist when satellites are launched in low orbits, typically mean altitudes of the order of 700 km. We will present first in this paper how we are able to estimate the mean Earth radiation flux when we consider temperature housekeeping data recorded with a specific space solar mission having this orbit property. We will show after how some solar parameters extracted from images recorded with the on-board telescope are correlated with the Earth atmospheric radiation flux. We will also present how we find the limits of the South Atlantic Anomaly from affected images.
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Abdanour Irbah, Mustapha Meftah, Alain Hauchecorne, El hadji Momar Cisse, Marc Lin, and Michel Rouzé "How Earth atmospheric radiations may affect astronomical observations from low-orbit satellites", Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 84425A (21 September 2012); https://doi.org/10.1117/12.925747
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