Effects of a Micrometeorite Stream on the Accuracy of Astrometric Measurements by Scanning Space-Borne Instruments

Details Effects of a Micrometeorite Stream on the Accuracy of Astrometric Measurements by Scanning Space-Borne Instruments Effects of a Micrometeorite Stream on the Accuracy of Astrometric Measurements by Scanning Space-Borne Instruments

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000astl...26..618m&link_type=abstract

Astronomy Letters, vol. 26, p. 618-620 (2000)

Astronomy and Astrophysics

Astronomy

Scientific paper

The effect of micrometeorite impacts upon the surface of a spacecraft on the accuracy of astrometric measurements made by scanning with instruments onboard the spacecraft is considered. This effect is shown to be marginal for HIPPARCOS measurements. However, disregarding this kind of effect for all the currently projected spacecraft may result in the declared measurement accuracy being unachievable. Spacecraft maintaining constant spatial orientation during measurements are essentially not subject to the errors caused by collisions with micrometeorites.

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