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Book Chapter

Measurements of cosmic dust and micro-debris in GEO


Grün,  E.
Ralf Srama - Heidelberg Dust Group, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Drolshagen, G., Svedhem, H., Grün, E., & Bunte, K. D. (2001). Measurements of cosmic dust and micro-debris in GEO. In ADVANCES IN SPACE RESEARCH (pp. 1325-1333).

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-8593-C
The Cosmic Dust/Space Debris impact detector GORID has now collected data for more than 3 years from its geostationary location at 80degrees East. The aperture size is 0.1 m(2) and the instrument is capable of detecting particles with a mass down to about 10-14 g (velocity dependent). The registered number of likely impact events per day ranged from 0 to more than 40 with an average around 2 per day. Many impacts occurred clustered in time and these clustered events sometimes reappeared for one or more days. It is suggested that these clustered events result from impacts of clouds of exhaust particles from the firing of solid rocket motors (SRM). For the specific case of an insertion bum into geostationary orbit on 10th June 1998 a detailed simulation of the SRM cloud evolution and expected impacts on GORED is performed. The results of this analysis are consistent with GORED measurements 11 days after the thruster firing. (C) 2001 COSPAR. Published by Elsevier Science Ltd. All rights reserved.