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Geodesy and cartography methods of exploration of the outer planetary systems: Galilean satellites and Enceladus

Zubarev, A. und Kozlova, N. und Kokhanov, A. und Oberst, J. und Nadezhdina, I. und Patraty, V. und Karachevtseva, I. (2014) Geodesy and cartography methods of exploration of the outer planetary systems: Galilean satellites and Enceladus. 40th COSPAR Scientific Assembly, 2014-08-02 - 2014-08-10, Moscow, Russia.

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Offizielle URL: http://adsabs.harvard.edu/abs/2014cosp...40E3862Z

Kurzfassung

While Galilean satellites have been observed by different spacecrafts, including Pioneer, Voyager-1 and -2, Galileo, New Horizons, and Enceladus by Cassini and Voyager-2, only data from Galileo, Cassini and the two Voyagers are useful for precise mapping. For purposes of future missions to the system of outer planets we have re-computed the control point network of the Io, Ganymede and Enceladus to support spacecraft navigation and coordinate knowledge. Based on the control networks, we have produced global image mosaics and maps. Geodesy approach. For future mission Laplace-P we mainly focused on Ganymede which coverage is nearly complete except for polar areas (which includes multispectral data). However, large differences exist in data resolutions (minimum global resolution: 30 km/pixel). Only few areas enjoy coverage by highest resolution images, so we suggest to obtain regional Digital Elevation Models (DEMs) from stereo images for selected areas. Also using our special software, we provide calculation of illumination conditions of Ganymede surface in various representations. Finally, we propose a careful evaluation of all available data from the previous Voyager and Galileo missions to re-determine geodetic control and rotation model for other Galilean satellites - Callisto and Europe. Mapping. Based on re-calculated control point networks and global mosaics we have prepared new maps for Io, Ganymede and Enceladus. Due to the difference in resolution between the images, which were also taken from different angles relative to the surface, we can prepare only regional high resolution shape models, so for demonstrating of topography and mapping of the satellites we used orthographic projection with different parameters. Our maps, which include roughness calculations based on our GIS technologies, will also be an important tool for studies of surface morphology. Conclusions. Updated data collection, including new calculation of elements of external orientation, provides new image processing of previous missions to outer planetary system. Using Photomod software (http://www.racurs.ru/) we have generated a new control point network in 3-D and orthomosaics for Io, Ganymede and Enceladus. Based on improved orbit data for Galileo we have used larger numbers of images than were available before, resulting in a more rigid network for Ganymede. The obtained results will be used for further processing and improvement of the various parameters: body shape parameters and shape modeling, libration, as well as for studying of the surface interesting geomorphological phenomena, for example, distribution of bright and dark surface materials on Ganymede and their correlations with topography and slopes.

elib-URL des Eintrags:https://elib.dlr.de/94294/
Dokumentart:Konferenzbeitrag (Vortrag, Poster)
Titel:Geodesy and cartography methods of exploration of the outer planetary systems: Galilean satellites and Enceladus
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Zubarev, A.Moscow State University of Geodesy and Cartography (MIIGAiK), Moscow, RussiaNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Kozlova, N.Moscow State University of Geodesy and Cartography (MIIGAiK), Moscow, RussiaNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Kokhanov, A.Moscow State University of Geodesy and Cartography (MIIGAiK), Gorokhovskiy per., 4, 105064, Moscow, RussiaNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Oberst, J.Juergen.Oberst (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Nadezhdina, I.Moscow State University of Geodesy and Cartography (MIIGAiK), Moscow, RussiaNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Patraty, V.Moscow State University of Geodesy and Cartography (MIIGAiK), Moscow, RussiaNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Karachevtseva, I.Moscow State University of Geodesy and Cartography (MIIGAiK), Moscow, RussiaNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:August 2014
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Ganymede, Enceladus, control point network, mapping
Veranstaltungstitel:40th COSPAR Scientific Assembly
Veranstaltungsort:Moscow, Russia
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:2 August 2014
Veranstaltungsende:10 August 2014
Veranstalter :COSPAR
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erforschung des Weltraums
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EW - Erforschung des Weltraums
DLR - Teilgebiet (Projekt, Vorhaben):R - Exploration des Sonnensystems
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Planetenforschung > Planetengeodäsie
Hinterlegt von: Wählisch, Marita
Hinterlegt am:08 Jan 2015 10:22
Letzte Änderung:24 Apr 2024 20:00

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