Comet Halley dust particles: Data given by the CIS sensor

Details Comet Halley dust particles: Data given by the CIS sensor Comet Halley dust particles: Data given by the CIS sensor

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250c.341m&link_type=abstract

In ESA, Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 3: Posters p 341-344 (SEE N87-26714

Physics

Cosmic Dust, Halley'S Comet, Particle Flux Density, Giotto Mission, Radiation Counters, Satellite-Borne Instruments

Scientific paper

The Capacitor Impact Sensor (CIS), one of the dust detectors flown on Giotto spacecraft within the DIDSY Experiment provided data on dust particles larger than 10-13kg. First detection occurred 34 minutes before encounter (1.4×105km from nucleus); about 15000 particles have been detected before closest approach. Between 34 minutes and 16 minutes before encounter average flux was 0.25 particle/m2/s. During the last 60 seconds before encounter the impact rate averages 5000 impacts/m2/s, with fast and large fluctuations. A peak flux rate has been recorded 28 seconds before encounter (5.3×104impacts/m2/s).

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