Integrated focal plane star sensor

Details Integrated focal plane star sensor Integrated focal plane star sensor

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ogs..rept.....b&link_type=abstract

Final Report Officine Galileo S.p.A., Florence (Italy).

Astronomy and Astrophysics

Astronomy

Astronomical Satellites, Focal Plane Devices, Infrared Astronomy, Infrared Detectors, Star Trackers, Breadboard Models, Cryogenic Equipment, Low Temperature Tests, Preamplifiers

Scientific paper

A theoretical analysis on the detectors suitable for the Infrared Space Observer (ISO) Integrated Focal Plane Star Sensor (IFPSS) design are presented together with system configuration concepts. A simplified configuration with respect to the electronic design was analyzed in order to reduce the power consumption, the mass, and the overall complexity of the sensor. The breadboard design is described. The system can use two different types of detector by means of variations in the H/W: a position sensing light detector, and a quadrant detector. Both were assembled and tested at ambient and cryogenic temperature by the IFPSS test equipment. The quadrant detector is recommended. The preamplifier is based on uncapsulated, self-heating JFET structures. Working temperature is 20 K and accuracy is within 1 arcsec.

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