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LRO Camera Imaging of Potential Landing Sites in the South Pole-Aitken Basin

Jolliff, B. L. und Wiseman, S. M. und Gibson, K. E. und Lauber, C. und Robinson, M. und Gaddis, L. R. und Scholten, F. und Oberst, J. und LROC Science Operation Team, (2010) LRO Camera Imaging of Potential Landing Sites in the South Pole-Aitken Basin. American Geophysical Union, Fall Meeting 2010, 13.–17. Dez. 2010, USA.

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Kurzfassung

We show results of WAC (Wide Angle Camera) and NAC (Narrow Angle Camera) imaging of candidate landing sites within the South Pole-Aitken (SPA) basin of the Moon obtained by the Lunar Reconnaissance Orbiter during the first full year of operation. These images enable a greatly improved delineation of geologic units, determination of unit thicknesses and stratigraphy, and detailed surface characterization that has not been possible with previous data. WAC imaging encompasses the entire SPA basin, located within an area ranging from ~ 130-250 degrees east longitude and ~15 degrees south latitude to the South Pole, at different incidence angles, with the specific range of incidence dependent on latitude. The WAC images show morphology and surface detail at better than 100 m per pixel, with spatial coverage and quality unmatched by previous data sets. NAC images reveal details at the sub-meter pixel scale that enable new ways to evaluate the origins and stratigraphy of deposits. Key among new results is the capability to discern extents of ancient volcanic deposits that are covered by later crater ejecta (cryptomare) [see Petro et al., this conference] using new, complementary color data from Kaguya and Chandrayaan-1. Digital topographic models derived from WAC and NAC geometric stereo coverage show broad intercrater-plains areas where slopes are acceptably low for high-probability safe landing [see Archinal et al., this conference]. NAC images allow mapping and measurement of small, fresh craters that excavated boulders and thus provide information on surface roughness and depth to bedrock beneath regolith and plains deposits. We use these data to estimate deposit thickness in areas of interest for landing and potential sample collection to better understand the possible provenance of samples. Also, small regions marked by fresh impact craters and their associated boulder fields are readily identified by their bright ejecta patterns and marked as lander keep-out zones. We will show examples of LROC data including those for Constellation sites on the SPA rim and interior, a site between Bose and Alder Craters, sites east of Bhabha Crater, and sites on and near the “Mafic Mound” [see Pieters et al., this conference]. Together the LROC data and complementary products provide essential information for ensuring identification of safe landing and sampling sites within SPA basin that has never before been available for a planetary mission.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:LRO Camera Imaging of Potential Landing Sites in the South Pole-Aitken Basin
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Jolliff, B. L.Washington University, St. Louis, MO, USA
Wiseman, S. M.Brown University, Providence, RI, USA
Gibson, K. E.Washington University, St. Louis, MO, USA
Lauber, C.Washington University, St. Louis, MO, USA
Robinson, M.Arizona State University, Tempe, AZ, USA
Gaddis, L. R.U.S. Geological Survey, Flagstaff, AZ, USA
Scholten, F.frank.scholten@dlr.de
Oberst, J.juergen.oberst@dlr.de
LROC Science Operation Team, NICHT SPEZIFIZIERT
Datum:Dezember 2010
Status:veröffentlicht
Stichwörter:[LROC, LRO, Moon, SPA basin, landing site
Veranstaltungstitel:American Geophysical Union, Fall Meeting 2010
Veranstaltungsort:USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:13.–17. Dez. 2010
Veranstalter :American Geophysical Union
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EW - Erforschung des Weltraums
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EW - Erforschung des Weltraums
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Planetenforschung (alt)
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Planetenforschung > Planetengeodäsie
Hinterlegt von: Marita Wählisch
Hinterlegt am:10 Jan 2011 09:19
Letzte Änderung:10 Jan 2011 09:19

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