Particle sightings by the infrared telescope on Spacelab 2

Details Particle sightings by the infrared telescope on Spacelab 2 Particle sightings by the infrared telescope on Spacelab 2

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jspro..30..216s&link_type=abstract

Journal of Spacecraft and Rockets (ISSN 0022-4650), vol. 30, no. 2, p. 216-221.

Computer Science

Cosmic Dust, Infrared Telescopes, Particle Telescopes, Spaceborne Telescopes, Spacelab Payloads, Black Body Radiation, Chemical Composition, Particle Size Distribution, Temperature Distribution

Scientific paper

Part of the objective of the cooled infrared telescope on Spacelab 2 was to determine the particle environment around the Space Shuttle. The telescope scanned the sky in six wavelength bands ranging from 2 to 100 microns with high time resolution. Dust particles could be identified from their particular signature in the data stream. Particle data from about 4 h early in the mission were analyzed in terms of size, color temperature, velocity, and time. The 1100 particles that were seen were slow moving and ranged in color temperature from 190 to 350 K with a few much hotter. The minimum detectable diameter is between 5 and 13 microns, depending on temperature. The size distribution resembles sample distributions collected at a Shuttle preparation facility. Although particle detection rates varied widely with time, no specific events were identified to be associated with particle production. It was not possible to determine the particle composition, although it was probably not ice.

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