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Dust Impact Monitor DIM Onboard Rosetta / Philae: Comparison of experimental Results and the Theory behind the Experiment

Krüger, Harald and Flandes, Alberto and Hirn, Attila and Loose, Alexander and Seidensticker, Klaus J. and Sperl, Matthias and Fischer, Hans­-Herbert and Arnold, Walter (2013) Dust Impact Monitor DIM Onboard Rosetta / Philae: Comparison of experimental Results and the Theory behind the Experiment. Dusty Visions 2013, 17.-19. Jul. 2013, Stuttgart.



The Rosetta lander spacecraft Philae will land on the nucleus surface of comet 67P/Churyumov-Gerasimenko in November 2014. Philae is equipped with the Dust Impact Monitor (DIM). DIM is part of the SESAME instrument package onboard Philae [Seidensticker et al., 2007] and employs piezoelectric PZT sensors to detect dust particle impacts. The sensors are mounted on the outer side of a cube, facing in orthogonal directions, this way allowing for the detection of grains approaching normal to the nucleus surface and from two horizontal directions. DIM’s total sensitive area is approximately 70 cm**2. It will measure impacts of sub-millimeter and millimeter sized ice and dust particles that are emitted from the nucleus and transported into the cometary coma by the escaping gas flow. A grain-size dependent fraction of the emitted grains is expected to fall back to the nucleus surface due to gravity. DIM will be able to detect both these components, the backfalling particles as well as the grains hitting the detector on direct trajectories from the surface. With DIM we will be able to measure fluxes, impact directions as well as the speed and size of the impacting cometary particles.

Item URL in elib:https://elib.dlr.de/84391/
Document Type:Conference or Workshop Item (Speech)
Title:Dust Impact Monitor DIM Onboard Rosetta / Philae: Comparison of experimental Results and the Theory behind the Experiment
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Krüger, HaraldMax-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, GermanyUNSPECIFIED
Flandes, AlbertoUNAM, MexikoUNSPECIFIED
Hirn, AttilaMTA, UngarnUNSPECIFIED
Loose, AlexanderMax-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, GermanyUNSPECIFIED
Seidensticker, Klaus J.Klaus.Seidensticker (at) dlr.deUNSPECIFIED
Sperl, Matthiasmatthias.sperl (at) dlr.deUNSPECIFIED
Fischer, Hans­-HerbertHans–Herbert.Fischer (at) dlr.deUNSPECIFIED
Arnold, WalterUniversität GöttingenUNSPECIFIED
Date:July 2013
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Rosetta Philae SESAME DIM Calibration
Event Title:Dusty Visions 2013
Event Location:Stuttgart
Event Type:Workshop
Event Dates:17.-19. Jul. 2013
Organizer:IRS at University Stuttgart
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt ROSETTA Instrumente
Location: Köln-Porz , Berlin-Adlershof
Institutes and Institutions:Space Operations and Astronaut Training > User center for space experiments (MUSC)
Institute of Planetary Research
Institute of Materials Physics in Space > Scientific Experiments MP
Deposited By: Seidensticker, Dr. Klaus J.
Deposited On:26 Nov 2013 13:13
Last Modified:31 Jul 2019 19:42

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