The NDAC HIPPARCOS data analysis consortium - Overview of the reduction methods

Details The NDAC HIPPARCOS data analysis consortium - Overview of the reduction methods The NDAC HIPPARCOS data analysis consortium - Overview of the reduction methods

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...258...18l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 258, no. 1, p. 18-30.

Computer Science

Performance

44

Algorithms, Attitude Stability, Data Reduction, Hipparcos Satellite, Satellite Observation, Astrometry, Astronomical Photometry, Calibrating, Great Circles, Spacecraft Performance

Scientific paper

This paper gives an overview of the assumptions and algorithms adopted by the Northern Data Analysis Consortium (NDAC) for the reduction of data from the space astrometry satellite Hipparcos. A fairly detailed account is given of the main steps of the reduction, viz., the attitude determination, analysis of image dissector tube data, great-circle reductions and sphere solution. Of these, only aspects of the attitude determination have required substantial revision due to the satellite's failure to reach geostationary orbit. A brief outline is given of the instrument calibrations and the analysis of non-single stars.

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