Directional and photometric observations of artificial earth satellites using the U.K. Satellite Laser Ranging System

Details Directional and photometric observations of artificial earth satellites using the U.K. Satellite Laser Ranging System Directional and photometric observations of artificial earth satellites using the U.K. Satellite Laser Ranging System

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990p%26ss...38..471a&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 38, April 1990, p. 471-481.

Astronomy and Astrophysics

Astronomy

1

Astronomical Photometry, Direction Finding, Geodetic Satellites, Laser Range Finders, Satellite Tracking, Space Observations (From Earth), Angular Velocity, Axes Of Rotation, Calibrating, Light Curve, Spinning Unguided Rocket Trajectory

Scientific paper

The recent use of the U.K. Satellite Laser Ranging System in nonranging mode to obtain astrometric and photometric observations of artificial satellites is described. It is found that the system is capable of obtaining a series of directional normal points of accuracy about 5 arcsec throughout a pass of a close-earth satellite. Simultaneous with the directional observations photometric observations were obtained with a time resolution of 0.2 s. The directional and photometric observations obtained from a pass of the discarded rocket body of Cosmos 1844 (1987-41B) have been analyzed as a demonstration of the system's potential to yield possible solutions for the behavior of the spin vector during the pass. It is found to precess on a cone of semiangle 39 + or - 3 deg with precession period 8.7 + or - 0.7 min.

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