2013/07/15 by Dušan Mandát, Miroslav Pech, M. Pech +16
Engineering · Physics and Astronomy · #CCD and CMOS Imaging Sensors #Calibration and Measurement Techniques #FOS: Physical sciences #Infrared Target Detection Methodologies #Instrumentation and Methods for Astrophysics (astro-ph.IM) #astro-ph.IM
paper · pdf · doi:10.48550/arxiv.1307.3880
In Proceedings of the 33rd International Cosmic Ray Conference (ICRC2013), Rio de Janeiro (Brazil). All CTA contributions at arXiv:1307.2232
arxiv created 2013/07/15 · openalex publication_date 2013/07/15 · openalex created_date 2016/06/24 · arxiv updated 2019/08/14 · openalex updated_date 2026/07/28
The All Sky Camera (ASC) was developed as a universal device for the monitoring of the night sky quality. Eight ASCs are already installed and measure night sky parameters at eight of the candidate sites of the Cherenkov Telescope Array (CTA) gamma-ray observatory. The ACS system consists of an astronomical CCD camera, a fish eye lens, a control computer and associated electronics. The measurement is carried out during astronomical night. The images are automatically taken every 5 minutes and automatically processed using the control computer of the device. The analysis results are the cloud fraction (the percentage of the sky covered by clouds) and night sky brightness (in mag/arcsec2)