Study of the true performance limits of the Astrometric Multiplexing Area Scanner (AMAS)

Details Study of the true performance limits of the Astrometric Multiplexing Area Scanner (AMAS) Study of the true performance limits of the Astrometric Multiplexing Area Scanner (AMAS)

Mar 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975stin...7612898f&link_type=abstract

Final Report, Apr. 1974 - Mar. 1975 Leander McCormick Observatory, Charlottesville, VA.

Astronomy and Astrophysics

Astronomy

Astrometry, Optical Scanners, Precision, Electrophotometers, Equipment Specifications, Focal Plane Devices, Frequency Modulation

Scientific paper

The Astrometric Multiplexing Area Scanner (AMAS) is an instrument designed to perform photoelectric long focus astrometry of small fields. Modulation of a telescope focal plane with a rotating Ronchi ruling produces a frequency modulated signal from which relative positions and magnitudes can be extracted. Evaluation instrumental precision, accuracy and resolution characteristics with respect to a variety of instrumental and cosmical parameters indicates 1.5 micron precision and accuracy for single stars under specific conditions. This value decreases for increased number of field stars, particularly for fainter stars.

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