Flux reconstruction for the NIR camera CAGIRE at the focus of the Colibrí telescope [IMA]

http://arxiv.org/abs/2209.00386


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.

Read this paper on arXiv…

A. Flèche, J. Atteia, H. Valentin, et. al.
Fri, 2 Sep 22
46/62

Comments: 19 pages, 13 figures, \c{opyright} (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE)