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Shape model, reference system definition, and cartographic mapping standards for comet 67P/Churyumov-Gerasimenko - Stereo-photogrammetric analysis of Rosetta/OSIRIS image data

Preusker, Frank and Scholten, F. and Matz, K.-D. and Roatsch, Thomas and Willner, Konrad and Hviid, S. F. and Knollenberg, J. and Jorda, L. and Gutierrez, P. J. and Kührt, E. and Mottola, S. and A’Hearn, M. F. and Thomas, N. and Sierks, H. and Barbieri, C. and Lamy, P. and Rodrigo, Rafael and Koschny, Detlef and Rickman, Hans and Keller, H. U. and Agarwal, J. and Barucci, M. A. and Bertaux, J.-L. and Bertini, I. and Cremonese, G. and Da Deppo, V. and Davidsson, B. and Debei, S. and De Cecco, M. and Fornasier, S. and Fulle, M. and Groussin, Olivier and Güttler, C. and Ip, W-H. and Kramm, J. R. and Küppers, Michael and Lara, L. M. and Lazzarin, M. and Lopez Moreno, J. and Marzari, F. and Michalik, H. and Naletto, G. and Oklay, N. and Tubiana, C. and Vincent, J.-B. (2015) Shape model, reference system definition, and cartographic mapping standards for comet 67P/Churyumov-Gerasimenko - Stereo-photogrammetric analysis of Rosetta/OSIRIS image data. Astronomy and Astrophysics, 583, A33. EDP Sciences. DOI: 10.1051/0004-6361/201526349 ISSN 0004-6361

Full text not available from this repository.

Official URL: http://www.aanda.org/articles/aa/abs/2015/11/aa26349-15/aa26349-15.html

Abstract

We analyzed more than 200 OSIRIS NAC images with a pixel scale of 0.9 - 2.4 m/pixel of comet 67P/Churyumov-Gerasimenko (67P/C-G) that have been acquired from onboard the Rosetta spacecraft in August/September 2014 using stereo-photogrammetric methods (SPG). We derived improved spacecraft position and pointing data for the OSIRIS images and a high-resolution shape model that consists of about 16 million facets (2 m horizontal sampling) and a typical vertical accuracy at the decimeter scale. From this model, we derive a volume for the northern hemisphere of 9.35 km^3 ± 0.1 km^3. With the assumption of a homogeneous density distribution and taking into account the current uncertainty of the position of the comet’s center-of-mass, we extrapolated this value to an overall volume of 18.7 km^3 ± 1.2 km^3, and, with a current best estimate of 1.0 × 10^13 kg for the mass, we derive a bulk density of 535 kg/m^3 ± 35 kg/m^3. Furthermore, we used SPG methods to analyze 67P/C-G’s rotational elements. The rotational period for August/September 2014 was determined to be 12.4041 ± 0.0004 h. For the orientation of the rotational axis (z-axis of the body-fixed reference frame) we derived a precession model with a half-cone angle of 0.14°, a cone center position at 69.54° /64.11° (RA/DEC J2000 equatorial coordinates), and a precession period of 10.7 days. For the definition of zero longitude (x-axis orientation), we finally selected the boulder-like Cheops feature on 67P/C-G’s big lobe and fixed its spherical coordinates to 142.35° right-hand-rule eastern longitude and -0.28° latitude. This completes the definition of the new “Cheops reference frame” for 67P/C-G. Finally, we defined cartographic mapping standards for common use and combined analysis of scientific results that have been obtained not only within the osiris team, but also within other groups of the rosetta mission.

Item URL in elib:https://elib.dlr.de/97623/
Document Type:Article
Title:Shape model, reference system definition, and cartographic mapping standards for comet 67P/Churyumov-Gerasimenko - Stereo-photogrammetric analysis of Rosetta/OSIRIS image data
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Scholten, F.frank.scholten (at) dlr.deUNSPECIFIED
Matz, K.-D.klaus-dieter.matz (at) dlr.deUNSPECIFIED
Roatsch, Thomasthomas.roatsch (at) dlr.deUNSPECIFIED
Willner, Konradkonrad.willner (at) dlr.deUNSPECIFIED
Hviid, S. F.Max-Planck-Institut fuer Sonnensystemforschung, Katlenburg-Lindau, GermanyUNSPECIFIED
Knollenberg, J.joerg.knollenberg (at) dlr.deUNSPECIFIED
Jorda, L.Laboratoire d'Astrophysique de Marseille, FranceUNSPECIFIED
Gutierrez, P. J.Instituto de Astrofísica de Andalucía – CSIC, Granada, SpainUNSPECIFIED
Kührt, E.ekkehard.kuehrt (at) dlr.deUNSPECIFIED
Mottola, S.stefano.mottola (at) dlr.deUNSPECIFIED
A’Hearn, M. F.Department for Astronomy, University of MarylandUNSPECIFIED
Thomas, N.Max-Planck-Institut für Aeronomie, Katlenburg-LindauUNSPECIFIED
Sierks, H.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, GermanyUNSPECIFIED
Barbieri, C.University of Padova, Padova, ItalyUNSPECIFIED
Lamy, P.Laboratoire d'Astronomie Spatiale, Marseille, FranceUNSPECIFIED
Rodrigo, RafaelInstituto de Astrofisica de AndaluciaUNSPECIFIED
Koschny, DetlefESTEC, The NetherlandsUNSPECIFIED
Rickman, HansUppsala Astronomical ObservatoryUNSPECIFIED
Keller, H. U.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-LindauUNSPECIFIED
Agarwal, J.Max-Planck-Institut für SonnensystemforschungUNSPECIFIED
Barucci, M. A.Observatoire de Paris, Meudon, FranceUNSPECIFIED
Bertaux, J.-L.Laboratoire Atmosphères, Milieux, Observations Spatiales, CNRS/UVSQ/UPMC, 11 boulevard d’Alembert, 78280 Guyancourt, FranceUNSPECIFIED
Bertini, I.Dipartimento di Astronomia, Università di Padova, Padova, ItalyUNSPECIFIED
Cremonese, G.Osservatorio Astronomico, Padova, ItalyUNSPECIFIED
Da Deppo, V.Consiglio Nazionale delle Ricerche-Istituto Nazionale per la Fisica della Materia, Luxor, Padova, ItalyUNSPECIFIED
Davidsson, B.Astronomiska observatoriet, Uppsala, SwedenUNSPECIFIED
Debei, S.Università di Padova, Center of Studies and Activities of Space (CISAS) "G.Colombo", Padova, ItalyUNSPECIFIED
De Cecco, M.Università di Padova, Center of Studies and Activities of Space (CISAS) "G.Colombo", Padova, ItalyUNSPECIFIED
Fornasier, S.Observatoire de Paris-Meudon, FranceUNSPECIFIED
Fulle, M.INAF - Osservatorio Astronomico di Trieste, Trieste, ItalyUNSPECIFIED
Groussin, OlivierLab. d'Astrophysique de Marseille, FranceUNSPECIFIED
Güttler, C.Max-Planck-Institut für SonnensystemforschungUNSPECIFIED
Ip, W-H.Institute for Space Science, National Central University, Chung Li, TaiwanUNSPECIFIED
Kramm, J. R.Max Planck Institute for Solar Systems Research, Katlenburg-Lindau, GermanyUNSPECIFIED
Küppers, MichaelMax-Planck-Institut für SonnensystemforschungUNSPECIFIED
Lara, L. M.Instituto de Astrofisica de Andalucia, CSIC, Granada, SpainUNSPECIFIED
Lazzarin, M.Department of Astronomy, University of PaduaUNSPECIFIED
Lopez Moreno, J.Instituto de Astrofifica de Andalucia-Consejo Superior de Investigaciones Cientificas, Granada, SpainUNSPECIFIED
Marzari, F.Università di Padova, Departimento di Fisica, Padova, ItalyUNSPECIFIED
Michalik, H.Institut für Datentechnik und Kommunikationsnetze (IDA), Technische Universität Braunschweig, Hans-Sommer-Str. 66, 38106 Braunschweig, GermanyUNSPECIFIED
Naletto, G.Università di Padova, Departimento di Elettronica et Informatica, Padova, ItalyUNSPECIFIED
Oklay, N.Max-Planck-Institut für SonnensystemforschungUNSPECIFIED
Tubiana, C.Max-Planck-Institut fuer Sonnensystemforschung, GermanyUNSPECIFIED
Vincent, J.-B.Max-Planck-Institut für Sonnensystemforschung, Göttingen, GermanyUNSPECIFIED
Date:2015
Journal or Publication Title:Astronomy and Astrophysics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:583
DOI :10.1051/0004-6361/201526349
Page Range:A33
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:67P/Churyumov-Gerasimenko, Comet, Rosetta, OSIRIS, stereo-photogrammetry, shape model, bulk density, rotational parameters, precession, reference coordinate frame, cartography, mapping
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: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Institute of Planetary Research > Planetary Geology
Institute of Planetary Research > Asteroids and Comets
Deposited By: Bründl, Tara-Marie
Deposited On:08 Dec 2015 14:11
Last Modified:08 Mar 2018 18:54

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