CoRoT in Brief

Details CoRoT in Brief CoRoT in Brief

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006esasp1306...19b&link_type=abstract

"Proceedings of "The CoRoT Mission Pre-Launch Status - Stellar Seismology and Planet Finding" (ESA SP-1306). Editors: M. Fridlun

Astronomy and Astrophysics

Astronomy

15

Scientific paper

The CoRoT Space Telescope is an experiment of astronomy dedicated to stellar seismology and search for extrasolar planets. The mission is led by CNES in association with French laboratories and with a significant international participation: ESA (Science Programme and RSSD/ESTEC, Austria, Belgium, Germany contribute to the payload, whereas Spain and Brazil (who has recently joined the project) contribute to the ground segment. Based on a PROTEUS low earth orbit recurrent platform, the spacecraft has been in development since October 2000 for a launch scheduled in Ocotber 2006. It gives an overview of the experiment, explains where the critical scientific requirements are for payload engineering and describes the cost-effective compromises found for high accuracy photometry in low earth orbit. We run through the different families of perturbations due to the interaction between the spacecraft and its environment and illustrate how some noise contributors, which generate spectral lines likely to be misinterpreted as a component of the star signal, are reduced by design, avoided by an appropriate mission profile or corrected after calibration. We focus on the following technical issues: telescope baffling and orbital drift, pointing stability, optoelectronics thermal regulation, light curve processing

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