COSAC's Only Gas Chromatogram Taken on Comet 67P/Churyumov-Gerasimenko.
Philae
Rosetta
comet
gas chromatography
mass spectrometry
trace analysis
Journal
ChemPlusChem
ISSN: 2192-6506
Titre abrégé: Chempluschem
Pays: Germany
ID NLM: 101580948
Informations de publication
Date de publication:
Jun 2022
Jun 2022
Historique:
revised:
02
05
2022
received:
31
03
2022
pubmed:
25
5
2022
medline:
3
6
2022
entrez:
24
5
2022
Statut:
ppublish
Résumé
The Philae lander of the Rosetta space mission made a non-nominal landing on comet 67P/Churyumov-Gerasimenko on November 12, 2014. Shortly after, using the limited power available from Philae's batteries, the COSAC instrument performed a single 18-minutes gas chromatogram, which has remained unpublished until now due to the lack of identifiable elution. This work shows that, despite the unsuccessful drilling of the comet and deposition of surface material in the SD2 ovens, the measurements from the COSAC instrument were executed nominally. We describe an automated search for extremely small deviations from noise and discuss the possibility of a signal from ethylene glycol at m/z 31. Arguments for and against this detection are listed, but the results remain inconclusive. Still, the successful operations of an analytical chemistry laboratory on a cometary nucleus gives great hope for the future of space exploration.
Identifiants
pubmed: 35608832
doi: 10.1002/cplu.202200116
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e202200116Subventions
Organisme : ANR
ID : ANR-15-IDEX-01
Organisme : ANR
ID : ANR-18-CE29-0004
Organisme : CNRS/INSU
Organisme : CNES
Organisme : ANR
ID : ANR-20-CE49-0004-01
Organisme : Spanish MICINN
ID : PID2020-118974GB-C21 (AEI/FEDER, UE)
Organisme : Unidad de Excelencia 'María de Maeztu' MDM-2017-0737 - Centro de Astrobiología (INTA-CSIC)
Informations de copyright
© 2022 The Authors. ChemPlusChem published by Wiley-VCH GmbH.
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