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Calibration trending in the Spitzer beyond era
Author(s): Patrick J. Lowrance; Jessica E. Krick; Jim G. Ingalls; Seppo Laine; Sean J. Carey; William Glaccum; Joseph L. Hora; Carl Grillmair
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Paper Abstract

The Spitzer Space Telescope currently operates in the "Beyond Era", over nine years past an original cryogenic mission. As the astronomy community continues to advance scientific boundaries and push beyond original specifications, the stability of the Infrared Array Camera (IRAC) instrument is paramount. The Instrument Team (IST) monitors the pointing accuracy, temperature, and calibration and provides the information in a timely manner to observers. The IRAC IST created a calibration trending web page, available to the general astronomy community, where the team posts updates of three most pertinent scientific stability measures of the IRAC data: calibration, bias, and bad pixels. In addition, photometry and telescope properties from all the staring observations (>1500 as of April 2018) are trended to examine correlations with changes in the age or thermal properties of the telescope. A long, well-sampled baseline established by consistent monitoring outside anomalies and space weather events allows even the smallest changes to be detected.

Paper Details

Date Published: 10 July 2018
PDF: 11 pages
Proc. SPIE 10704, Observatory Operations: Strategies, Processes, and Systems VII, 1070427 (10 July 2018); doi: 10.1117/12.2313953
Show Author Affiliations
Patrick J. Lowrance, IPAC, Caltech (United States)
Jessica E. Krick, IPAC, Caltech (United States)
Jim G. Ingalls, IPAC, Caltech (United States)
Seppo Laine, IPAC, Caltech (United States)
Sean J. Carey, IPAC, Caltech (United States)
William Glaccum, IPAC, Caltech (United States)
Joseph L. Hora, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Carl Grillmair, IPAC, Caltech (United States)

Published in SPIE Proceedings Vol. 10704:
Observatory Operations: Strategies, Processes, and Systems VII
Alison B. Peck; Robert L. Seaman; Chris R. Benn, Editor(s)

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