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Rosetta-Philae: First Landing on a Comet

Ulamec, Stephan (2016) Rosetta-Philae: First Landing on a Comet. Winterseminar 2015/2016, 21. Januar 2016, TU München, Lehrstuhl für Raumfahrttechnik.

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Rosetta is a Cornerstone Mission of the ESA Horizon 2000 programme. In August 2014 it reached comet 67P/Churyumov-Gerasimenko after a 10 year cruise. Both its nucleus and coma have been studied with its orbiter payload of eleven PI instruments, allowing the selection of a landing site for Philae. The landing on the comet nucleus successfully took place on November 12th, 2014. Philae touched the comet surface seven hours after ejection from the orbiter. After several bounces it came to rest and continued to send scientific data to Earth. All ten instruments of its payload have been operated at least once. Due to the fact that the Lander could not be anchored, the originally planned first scientific sequence had to be modified. Philae went into hibernation on November 15th, after its batteries ran out of energy. During the first days on the comet, images from the surface could be transmitted to Earth, organic molecules were detected and the physical properties of surface material as well as the interior of the nucleus were determined. Re-activation of the Lander was expected for May/June 2015, when CG would be closer to the sun and, indeed, radio contact with the Lander was re-established on June. Housekeeping values showed that Philae has already been active earlier, but no RF contact with the mothership could be established. Seven more times, signals from Philae were received, the last ones on July 9th, 2015. Unfortunately, no reliable or predictable links could be achieved. Rosetta is an ESA mission with contributions from its member states and NASA. Rosetta's Philae lander is provided by a consortium led by DLR, MPS, CNES and ASI with additional contributions from Hungary, UK, Finland, Ireland and Austria

Item URL in elib:https://elib.dlr.de/102356/
Document Type:Conference or Workshop Item (Speech)
Title:Rosetta-Philae: First Landing on a Comet
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ulamec, StephanDLR-Köln, stephan.ulamec (at) dlr.deUNSPECIFIED
Date:21 January 2016
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Rosetta, Philae
Event Title:Winterseminar 2015/2016
Event Location:TU München, Lehrstuhl für Raumfahrttechnik
Event Type:Other
Event Dates:21. Januar 2016
Organizer:TU MÜnchen
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 Lander
Location: Köln-Porz
Institutes and Institutions:Space Operations and Astronaut Training > User center for space experiments (MUSC)
Deposited By: Herrmann, Astrid
Deposited On:26 Jan 2016 10:53
Last Modified:10 May 2016 23:42

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