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Flux reconstruction for the NIR camera CAGIRE at the focus of the Colibrí telescope
- Source :
- Proceedings Volume 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X, SPIE Astronomical Telescopes + Instrumentation 2022, SPIE Astronomical Telescopes + Instrumentation 2022, Jul 2022, Montréal, Canada. pp.121910Q, ⟨10.1117/12.2627826⟩
- Publication Year :
- 2022
- Publisher :
- arXiv, 2022.
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Abstract
- CAGIRE is the near infrared camera of the Colibr\'i robotic telescope, designed for the follow-up of SVOM alerts. It is based on the ALFA 2k x 2k detector, from the LYNRED French Company, operating in "Up the Ramp" mode. An observation consists in a series of short (1-2 minutes) exposures during which the pixels are read out every 1.3 second, while continuously accumulating charges proportionally to the received flux. We discuss here the preprocessing of CAGIRE data and a method that can be used to recover the flux received by each pixel from the slope of the ramp.<br />Comment: 19 pages, 13 figures, \c{opyright} (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE)
Details
- Database :
- OpenAIRE
- Journal :
- Proceedings Volume 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X, SPIE Astronomical Telescopes + Instrumentation 2022, SPIE Astronomical Telescopes + Instrumentation 2022, Jul 2022, Montréal, Canada. pp.121910Q, ⟨10.1117/12.2627826⟩
- Accession number :
- edsair.doi.dedup.....0ef5bbd599142b899d1c152cd24ec722
- Full Text :
- https://doi.org/10.48550/arxiv.2209.00386