Deep Impact Observations by OSIRIS Onboard the Rosetta Spacecraft

Details Deep Impact Observations by OSIRIS Onboard the Rosetta Spacecraft Deep Impact Observations by OSIRIS Onboard the Rosetta Spacecraft

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sci...310..281k&link_type=abstract

Science, Volume 310, Issue 5746, pp. 281-283 (2005).

Computer Science

62

Scientific paper

The OSIRIS cameras (optical, spectroscopic, and infrared remote imaging system) onboard the European Space Agency's Rosetta spacecraft observed comet 9P/Tempel 1 for 17 days continuously around the time of NASA's Deep Impact mission. The cyanide-to-water production ratio was slightly enhanced in the impact cloud, compared with that of normal comet activity. Dust particles were flowing outward in the coma at >160 meters per second, accelerated by the gas. The slope of the brightness increase showed a dip about 200 seconds after the impact. Dust Afρ values before and long after the impact confirm the slight decrease of cometary activity. The dust-to-water mass ratio was much larger than 1.

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