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March 2010 flybys – HRSC / SRC images

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March 2010 flybys – HRSC / SRC images

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  1. Phobos Digital Terrain Model (DTM)and Coordinate Refinement for Phobos-Grunt Mission Support K. Willner1, J.Oberst1,2, X. Shi3, H. Hoffmann21) Technische Universität Berlin, Department of Geodesy and Geoinformation Sciences, Berlin, Germany2) German Aerospace Center (DLR), Institute of Planetary Research, Berlin-Adlershof, Germany3) Shanghai Astronomical Observatory, Chinese Academy of Sciences

  2. March 2010 flybys – HRSC / SRC images The first Moscow Solar System Symposium (1M-S3) >> Stereo 2 image 7926 SRC image 7926 Nadir image 7926 SRC image 7937 SRC image 7982 Nadir image 7982

  3. The first Moscow Solar System Symposium (1M-S3) >> Flyby Data • Orbits 7915,7926, 7937: Nadir, Stereo and Photometry channels • Area covered reaches from Western rim of Stickney to approx. 230° West and from North Pole to Equator * used for DTM reconstruction

  4. Image coverage March 2010 flybys • Observation geometry was similar for all flybys • Similar coverage and light conditions for all flybys • Proposed landing site area of Phobos Grunt is covered and illuminated Nadir channel image orbit 7926 The first Moscow Solar System Symposium (1M-S3) >>

  5. Landing Site DTM The first Moscow Solar System Symposium (1M-S3) >> • Result of DTM reconstruction – 100 m/pixel lateral resolution, relative point accuracy +/- 10m • Control network published in EPSL serves as reference • Landing site location as described in Basilevsky & Shingareva, 2010

  6. The first Moscow Solar System Symposium (1M-S3) >> Perspective View N

  7. Properties of the Landing Area • 2 x 2 degree grid shows gentle slopes within the landing area • Almost flat terrain at landing site 1 • Small slope at proposed landing site 2 • Small number of craters in both proposed landing sites N 1 2 Approx. Landing Sites Basilevsky & Shingareva, 2010 The first Moscow Solar System Symposium (1M-S3) >>

  8. Effective Surface Acceleration Shi, X. et al., 2010 The first Moscow Solar System Symposium (1M-S3) >>

  9. Effective Surface Acceleration - 2 Shi, X. et al., 2010 The first Moscow Solar System Symposium (1M-S3) >>

  10. Coordinates of the Suggested Landing Sites • Coordinates refer to the coordinate frame defined by the control network (Willner et al., 2010) • Coordinates have an accuracy of +/- 0.1° The first Moscow Solar System Symposium (1M-S3) >>

  11. The first Moscow Solar System Symposium (1M-S3) >> Outlook Registration of color channel images to DTM Interpretation of multispectral images • Add further data and improve accuracy of DTM • Image mosaic update (currently done) • Map update

  12. The first Moscow Solar System Symposium (1M-S3) >> Other Phobos Activities ISSI Workshop Series: Phobos and Deimos – After Mars Express, Before Phobos Grunt First Workshop, March 2010, next: April 2011. http://www.issibern.ch/teams/phobosdeimos/ Planned: Publication of a „Phobos Book“ WorkshopTeam: Jürgen Oberst (Coord.) Alexander T. Basilevsky Veronique Dehant Thomas C. Duxbury Robert A. Jacobson Martin Pätzold Carle M. Pieters Kira B. Shingareva Peter C. Thomas William Thuillot Alexander V. Zakharov

  13. The first Moscow Solar System Symposium (1M-S3) >> GETEMME, a Mission to Explore the Martian Satellites and the Fundamentals of Solar System Physics A proposal for an ESA Cosmic Vision M-Class Mission for launch in 2022 or 2020 Rendezvous with Deimos and Phobos, deploy Laser reflectors Monitor precise range from the spacecraft to Deimos, Phobos and Earth for 1 Mars year for studies of satellite dynamics and fundamental physics Comprehensive remote sensing of Deimos and Phobos Proposal Team: Jürgen Oberst, Valery Lainey, Christophe Le Poncin-Lafitte (Coordinators); Stephan Ulamec, Jens Biele, Harald Hoffmann, Konrad Willner, Veronique Dehant, Pascal Rosenblatt, Alexander V. Zakharov; > 100 proposal supporters

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