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Proceedings Paper

Areosynchronous weather imager
Author(s): Jeffery J. Puschell; Robert Lock
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Paper Abstract

Mars is characterized by rapidly changing, poorly understood weather that is a concern for future human missions. Future Areosynchronous Mars Orbit (AMO) communication satellites offer possible platforms for Mars weather imagers similar to the geosynchronous Earth orbit (GEO) weather imagers that have been observing Earth since 1966. This paper describes an AReosynchronous Environmental Suite (ARES) that includes two imagers: one with two emissive infrared bands (10.8 μm and 12.0 μm) at 4 km resolution and the other with three VNIR bands (500 nm, 700 nm, 900 nm) at 1 km resolution. ARES stares at Mars and provides full disk coverage as fast as every 40 sec in the VNIR bands and every 2 min in the emissive bands with good sensitivity (SNR~200 in the VNIR for typical radiances and NEDT~0.2K at 180 K scene temperature in the emissive infrared). ARES size, mass, power and data rate characteristics are compatible with expectations for hosted payloads onboard future AMO communication satellites. Nevertheless, more work is needed to optimize ARES for future missions, especially in terms of trades between data rate, full disk coverage rate, sensitivity, number of spectral bands and spatial resolution and in study of approaches for maintaining accurate line of sight knowledge during data collection.

Paper Details

Date Published: 19 September 2016
PDF: 13 pages
Proc. SPIE 9977, Remote Sensing System Engineering VI, 99770E (19 September 2016); doi: 10.1117/12.2242301
Show Author Affiliations
Jeffery J. Puschell, Raytheon Space and Airborne Systems (United States)
Robert Lock, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 9977:
Remote Sensing System Engineering VI
Philip E. Ardanuy; Jeffery J. Puschell, Editor(s)

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