Physics
Scientific paper
Jan 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999adspr..23...37b&link_type=abstract
Advances in Space Research, Volume 23, Issue 1, p. 37-44.
Physics
1
Scientific paper
A collaboration between the Observatoire de la Côte d'Azur (OCA) and the Centre National d'Études Spatiales (CNES) started in 1996 for detecting optically faint sources close to the geostationary ring using the OCA Schmidt camera. After a first approach based on photographic films we have installed a 2048×2048 CCD camera at the focus of the telescope. An automated analysis method was developed. After identifying all stellar trails on the CCD frames we subtract them after a suitable modelization. The detection of the remaining objects takes into account the noise variations due to the model defects. For each CCD frame about two hundred point-like objects are identified. The detection of possible space objects is achieved by matching the lists of candidates obtained on three or more successive images. Few objects are observed at a limiting magnitude around 20. We determine their approximate orbits in order to allow follow up observations for each object. A software allowing the user to process the images just after the acquisition has been developed. A one year observational campaign is foreseen in the near future.
Alby Fernand
Bijaoui Albert
Maury Alain
Oberti Pascal
Vandame Benoit
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