Double star reductions in NDAC

Details Double star reductions in NDAC Double star reductions in NDAC

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989hmps....3..225s&link_type=abstract

In its The Hipparcos Mission. Prelaunch Status. Volume 3: The Data Reductions p 225-241 (SEE N90-13548 05-18)

Astronomy and Astrophysics

Astronomy

1

Astrometry, Binary Stars, Data Reduction, Image Resolution, Photometry, European Space Programs, Harmonic Functions, Hipparcos Satellite, Pattern Recognition, Phase Shift, Stellar Orbits, Stellar Parallax, Teams

Scientific paper

The approach adopted by the Northern Data Analysis Consortium (NDAC) for the double star data treatment, to be applied in Hipparcos data reduction, is presented. Accurate orbit sizes and parallaxes for nearby binaries are obtained. The phase shift between the first and second harmonics of the primary grid modulated signal is applied to the recognition and parameter determination for non single objects. The goals of the strategy of the reductions are underlined. The method of solution and the standard reduction programs are described.

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