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Applications of CMOS visible image sensor to survey of potentially hazardous asteroids using optimized ground based telescopes
Author(s): Stephen M. Larson; Gary R. Sims; Eric J. Christensen
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Paper Abstract

Application of CMOS image sensors with non-destructive readout capability have several advantages over current CCD sensors in detecting Near-Earth Objects (NEOs). They include detection of temporal changes, cosmic ray rejection, no charge blooming, expanded dynamic range, and lower dark current. Since wide field survey usually requires large mosaics, a “rolling shutter” operation simplifies the challenge of large mechanical shutters. Being able to readout parts of the field in destructive mode offers the possibility of providing guiding feedback to the telescope during exposure. We have carried out preliminary testing of a prototype CMOS camera built by Spectral Instruments Inc. on a one-meter telescope on Mt. Lemmon, Arizona as applied to rapidly moving NEOs. We have also demonstrated “post facto” guiding on a known NEO that significantly improves the signal to noise.

Paper Details

Date Published: 10 July 2018
PDF: 6 pages
Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 107063Q (10 July 2018); doi: 10.1117/12.2314081
Show Author Affiliations
Stephen M. Larson, The Univ. of Arizona (United States)
Gary R. Sims, Spectral Instruments, Inc. (United States)
Eric J. Christensen, The Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 10706:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Ramón Navarro; Roland Geyl, Editor(s)

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