Design of a solar aspect sensor for daytime azimuthal orientation

Details Design of a solar aspect sensor for daytime azimuthal orientation Design of a solar aspect sensor for daytime azimuthal orientation

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ijrsp..20..265n&link_type=abstract

(Thirty years of scientific ballooning in India; Symposium, Hyderabad, India, Oct. 22-24, 1990, Selected Papers. A92-23051 08-99

Physics

Space Physics

Balloon-Borne Instruments, Solar Sensors, X Ray Telescopes, Azimuth, Gondolas, Imaging Techniques, Pointing Control Systems, Telemetry

Scientific paper

The function of a solar aspect sensor, which has been designed for pointing X-ray imaging telescope during the daytime, is described. The basic principle of this sensor is to obtain the position of the sun with respect to a reference point on the gondola, in which the X-ray telescope is mounted. An accuracy of 6 arcmin has been achieved in the pointing. It will be possible in the near future to use both the sun and the moon for the aspect sensing by adjusting the electronic thresholds and gains through telecommand.

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