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745 results on '"Oberst, J."'

301. HRSC: High Resolution Stereo Camera

Author

Neukum, G., Jaumann, R., Basilevsky, A.T., Dumke, A., van Gasselt, S., Giese, B., Hauber, E., Head, J.W., Heipke, C., Hoekzema, N., Hoffmann, H., Greeley, R., Gwinner, K., Kirk, R.L., Markiewicz, W., McCord, T.B., Michael, G., Muller, J.-P., Murray, J.B., Oberst, J., Pinet, P., Pischel, R., Roatsch, T., Scholten, F., Willner, K., HRSC Co-Investigator Team, and HRSC Associates

Subjects
HRSC, geology, Mars, Mars Express
Published
2009

302. Marco Polo: A Sample Return Mission to a Primitive Near-Earth Object in Assessment Study in the ESA Program Cosmic Vision 2015-2025

Author

Michel, P., Barucci, A., Koschny, D., Yoshikawa, M., Boenhardt, H., Brucato, J., Dotto, E., Franchi, I., Simon F. Green, Josset, Jl, Kawagushi, J., Muinonen, K., Oberst, J., Yano, H., Binzel, R., Agnolon, D., Romstedt, J., Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, and Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Near-Erth objects, Marco Polo, ESA Cosmic vision
Abstract

Meteoritics and Planetary Science Supplement, 72, p. 5261 (2009); International audience

Published
2009

304. Wide angle and stereo cameras for JGO

Author

Cremonese, Gabriele, Langevin, Y., Lara, L. M., Neukum, G., Capria, M. T., Stefano Debei, Castro, J. M., Eng, P., Vangasselt, S., Adriani, A., Basilevsky, A. T., Behnke, T., Carlo BETTANINI FECIA DI COSSATO, Capaccioni, F., Colangeli, L., Da Deppo, Vania, Desanctis, M. C., Denk, T., Fabel, O., Filacchione, G., Galuba, G., Gwinner, K., Hartmann, O., Haruyama, J., Hiesinger, H., Hoffmann, H., Jaumann, R., Martellato, E., FRANCESCO MARZARI, Matteo Massironi, Michaelis, H., Giampiero Naletto, Oberst, J., Palumbo, P., MARCO PERTILE, Schmedemann, N., Schneider, N., Tosi, F., and mirco zaccariotto

Abstract

In May 2009 we have submitted to ESA a Declaration of Interest for a camera package to be place d onboard the ESA-led Jupiter Ganymede Orbiter, the JGO-WASC (JGO Wide Angle and Stereo Cameras). The camera package we are proposing includes the wide angle and the medium resolution cameras (WAC and MRC), that will be used for the scientific investigation and imaging exploration of the Jovian system and Ganymede in the visible spectral range (350-1050nm) and in stereo mode. The study will be carried out by a consortium currently led by INAF-OAPD (Italy) and including INAF-IFSI (Italy), INAF-IASF (Italy), CISAS & DEI & dep.Geosciences & dep. Physics-University of Padova (Italy), University Parthenope Napoli (Italy), INAF-OAC Napoli (Italy), IAS-Orsay (France), Free University of Berlin (Germany), IAA-CSIC Granada (Spain), DLR Berlin (Germany), Technical University Berlin (Germany), University of Muenster (Germany), University of Colorado Boulder (USA), ISAS-JAXA Kanagawa (Japan), Galileo Avionica (Italy).

Published
2009

306. First LOCSMITH locations of deep moonquakes

Author

Hempel, S., Knapmeyer, M., Sens-Schönfelder, C., and Oberst, J.

Subjects
error estimation, deep moon quakes, relocating moonquakes, seismicity, LOCSMITH, lunar structure
Published
2008

308. Observations of Phobos by the HRSC on Mars Express

Author

Willner, K., Oberst, J., Wählisch, M., Hoffmann, H., Matz, K.-D., Roatsch, T., Jaumann, R., Duxbury, T., and Neukum, G.

Subjects
Phobos, HRSC, Remote Sensing, Mars Express, Line Scanner, Observations
Published
2008

312. A Near Earth Object Sample Return Mission

Author

Barucci, M. A., Yoshikawa, M., Michel, P., Kawaguchi, J., Yano, H., Brucato, J. R., Franchi, I., Dotto, E., Fulchignoni, M., Ulamec, S., Boehnhardt, H., Coradini, M., Green, S. F., Josset, J.-L., Koschny, D., Muinonen, M., Oberst, J., and Marco Polo Science Team

Subjects
Return Mission
Published
2008

313. Of Moonquakes and Marsquakes

Author

Knapmeyer, M., Oberst, J., and Spohn, T.

Subjects
seismicity of Mars, Moonquakes, Lunar Seismic Event Catalog, non-linear adaptive grid scheme, Marsquakes
Published
2008

317. Evaluating Planetary Digital Terrain Models - The HRSC DTM Test

Author

Heipke, C., Oberst, J., Albertz, J., Attwenger, M., Dorninger, P., Dorrer, E., Ewe, M., Gehrke, S., Gwinner, K., Hirschmüller, H., Kim, J. R., Kirk, R. L., Mayer, H., Muller, J.-P., Rengarajan, R., Rentsch, M., Schmidt, R., Scholten, F., Shan, J., Spiegel, M., Wählisch, M., and Neukum, G.

Subjects
HRSC, DTM/DEM, Experimental test, Mars, Surface reconstruction, Robotersysteme
Published
2007

321. Contribution of High Resolution Stereo Camera (HRSC) data analysis for landing site selection on Mars

Author

Gwinner, K., Hauber, E., Neukum, G., Jaumann, R., Scholten, F., Oberst, J., and Lunar and Planetary Institute

Subjects
HRSC, Planetengeologie, MEX, Mars Express, Landing Site Selection
Abstract

The High Resolution Stereo Camera (HRSC) [1] onboard ESA`s Mars Express (MEX) mission is a multiple line scanner which acquires 5 stereo channels and 4 colors. HRSC data are unique since a single image sequence covers very large areas (typically in the order of 104 km2) at high image resolution (Tab. 1) while providing also stereo information. HRSC stereophotogrammetric data products include high-resolution digital terrain models (DTM) and mapprojected orthoimages [2]. They have proven very useful as base maps for planning and scientific mapping tasks. Accurate georeferencing makes their combination with other spatial datasets straightforward. In the site selection process for Mars landing missions, quantitative 3D information on the surface topography, and particularly information on local surface slopes, is very important [3,4]. Since the swath width of HRSC is ~60 km, the entire size of, e.g., a Mars Science Laboratory (MSL) landing site ellipse (20 km diameter) can be covered by one HRSC scene. We demonstrate the properties of HRSC DTM and slope data for one of the proposed MSL landing sites, and discuss results obtained from preliminary stereo analysis for most of the presently proposed MSL landing site candidates (http://marsoweb.nas.nasa.gov/landingsites).

Published
2007

322. The high-resolution stereo camera (HRSC) experiment on Mars Express: Instrument aspects and experiment conduct from interplanetary cruise through nominal mission

Author

Jaumann, R., Neukum, G., Behnke, T., Duxbury, T. C., Eichentopf, K., Flohrer, J., van Gasselt, S., Giese, B., Gwinner, K., Hauber, E., Hoffmann, H., Hoffmeister, A., Köhler, U., Matz, K.-D., McCord, T. B., Mertens, V., Oberst, J., Pischel, R., Reiss, D., Ress, E., Roatsch, T., Saiger, P., Scholten, F., Schwarz, Gottfried, Stephan, K., Wählisch, M., and HRSC Co-Investigator Team

Subjects
HRSC, Stereo imaging, Planetary missions, Mars, Mars Express, Imaging instruments
Published
2007

323. Lunar Exploration Orbiter (LEO): Providing a Globally Covered, Highly Resolved Integrated, Geological, Geochemical and Geophysical Data Base of the Moon

Author

Jaumann, R., Spohn, T., Hiesinger, H., Jessberger, E.K., Neukum, G., Oberst, J., Helbert, J., Christensen, U., Keller, H.U., Mall, U., Böhnhardt, H., Hartogh, P., Glassmeier, K.-H., Auster, H.-U., Moreira, A., Werner, M., Pätzold, M., Palme, H., Wimmer-Schweingruber, R., Mandea, M., Flechtner, F., Lesur, V., Häusler, B., Srama, R., Kempf, S., Hördt, A., Eichentopf, K., Hauber, E., Hoffmann, H., Köhler, U., Kührt, E., Michaelis, H., Pauer, M., Sohl, F., Denk, T., and van Gasselt, S.

Subjects
Institut für Planetenforschung, LEO, 550 - Earth sciences, Solar System, orbiter, MOON
Abstract

The German initiative for the Lunar Exploration Orbiter (LEO) originated from the national conference “Exploration of our Solar System”, held in Dresden in November 2006. Major result of this conference was that the Moon is of high interest for the scientific community for various reasons, it is affordable to perform an orbiting mission to Moon and it insures technological and scientific progress necessary to assist further exploration activities of our Solar System. Based on scientific proposals elaborated by 50 German scientists in January 2007, a preliminary payload of 12 instruments was defined. Further analysis were initated by DLR in the frame of two industry contracts, to perform a phase-zero mission definition. The Moon, our next neighbour in the Solar System is the first choice to learn, how to work and live without the chance of immediate support from earth and to get prepared for further and farther exploration missions. We have to improve our scientific knowledge base with respect to the Moon applying modern and state of the art research tools and methods. LEO is planed to be launched in 2012 and shall orbit the Moon for about four years in a low altitude orbit.

Published
2007

324. Konzept eines Lunaren Explorations Orbiters (LEO), Vorschlag für eine Wissenschaftliche Mondmission

Author

Jaumann, R., Spohn, T., Eichentopf, K., Hauber, E., Helbert, J., Hoffmann, H., Köhler, U., Kührt, E., Michaelis, H., Oberst, J., Pauer, M., Sohl, F., Hiesinger, H., Jessberger, E., Neukum, G., Denk, T., van Gasselt, S., Christensen, U., Keller, H., Mall, U., Böhnhardt, H., Hartogh, P., Glassmeier, K., Auster, H., Hördt, A., Moreira, A., Werner, M., Pätzold, M., Palme, H., Wimmer-Schweingruber, R., Mandea, M., Lesur, V., and Häusler, B.

Subjects
550 - Earth sciences
Published
2007

325. Lunar Exploration Orbiter (LEO)

Author

Jaumann, R., Spohn, T., Hiesinger, H., Jessberger, E., Neukum, G., Oberst, J., Helbert, J., Christensen, U., Keller, H., Mall, U., Böhnhardt, H., Hartogh, P., Glassmeier, K., Auster, H., Moreira, A., Werner, M., Pätzold, M., Palme, H., Wimmer-Schweingruber, R., Mandea, M., Lesur, V., Häusler, B., Hördt, A., Eichentopf, K., Hauber, E., Hoffmann, H., Köhler, U., Kührt, E., Michaelis, H., Pauer, M., Sohl, F., Denk, T., and van Gasselt, S.

Subjects
550 - Earth sciences
Published
2007

328. Martian Seismicity: Implications of the Global Surface Fault Distribution and of Lithospheric Cooling

Author

Knapmeyer, M., Oberst, J., Hauber, E., Wählisch, M., Deuchler, C., and Wagner, R.

Subjects
Planetenphysik, Institut für Planetenforschung, Mars, tectonics, faults, marsquakes, seismology
Abstract

This contribution presents a model that links the observed distribution of surface faults to the spatial distribution of marsquakes. The annual seismic moment budget is computed based on the as-sumption that global cooling and subsequent shrink-ing of Mars is the main source of strain today [1]. A truncated Gutenberg-Richter distribution is used to re-late the seismic moment budget to marsquake frequen-cies. We have derived a theoretical relation for the limitation of quake size by the lengths of the individual faults. This relation is used for the simulation of epi-center catalogs that may serve as input data for the development of seismological experiments.

Published
2006

330. ENCELADUS GEODETIC FRAMEWORK.

Author

Oberst, J., Hussmann, H., Giese, B., Sohl, F., Shoji, D., Stark, A., Wickhusen, K., and Wählisch, M.

Subjects
ENCELADUS (Satellite), SATURN (Planet)
Abstract

The small (approximately 500 km in diameter) satellite Enceladus is moving near the equatorial plane and deep in the gravity field of its parent planet Saturn. Owing to tidal interaction with its parent, Enceladus has adopted a pronounced 3-axial ellipsoidal shape and is tidally locked, with rotational and orbital periods of about 1.37 days. As the equator of Saturn is inclined to the planet's orbital plane, Enceladus, like most of the other satellites of Saturn, undergoes pronounced seasons. This paper gives a summary of the current status as well as shortcomings of our current knowledge regarding Enceladus' geodetic and dynamic parameters. [ABSTRACT FROM AUTHOR]

Published
2017
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331. AN INITIATIVE FOR CONSTRUCTION OF NEW-GENERATION LUNAR GLOBAL CONTROL NETWORK USING MULTI-MISSION DATA.

Author

Di, K., Liu, B., Peng, M., Xin, X., Jia, M., Zuo, W., Ping, J., Wu, B., and Oberst, J.

Subjects
GEODESY, LUNAR surface, CLEMENTINE
Abstract

A lunar global control network provides geodetic datum and control points for mapping of the lunar surface. The widely used Unified Lunar Control Network 2005 (ULCN2005) was built based on a combined photogrammetric solution of Clementine images acquired in 1994 and earlier photographic data. In this research, we propose an initiative for construction of a new-generation lunar global control network using multi-mission data newly acquired in the 21st century, which have much better resolution and precision than the old data acquired in the last century. The new control network will be based on a combined photogrammetric solution of an extended global image and laser altimetry network. The five lunar laser ranging retro-reflectors, which can be identified in LROC NAC images and have cm level 3D position accuracy, will be used as absolute control points in the least squares photogrammetric adjustment. Recently, a new radio total phase ranging method has been developed and used for high-precision positioning of Chang'e-3 lander; this shall offer a new absolute control point. Systematic methods and key techniques will be developed or enhanced, including rigorous and generic geometric modeling of orbital images, multi-scale feature extraction and matching among heterogeneous multi-mission remote sensing data, optimal selection of images at areas of multiple image coverages, and large-scale adjustment computation, etc. Based on the high-resolution new datasets and developed new techniques, the new generation of global control network is expected to have much higher accuracy and point density than the ULCN2005. [ABSTRACT FROM AUTHOR]

Published
2017
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332. The Mapping Performance of the HRSC/SRC in Mars Orbit

Author

Oberst, J., Roatsch, T., Giese, B., Wählisch, M., Scholten, F., Gwinner, K., Matz, K.-D., Hauber, E., Jaumann, R., Albertz, J., Gehrke, S., Heipke, C., Schmidt, R., Ebner, H., Spiegel, M., Gasselt, S. van, Neukum, G., and HRSC CO-I team

Subjects
Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften, Cartography, Martian surface analysis, Orbits, Mars, Commissioning phase, Planetary, HRSC, Aneroid altimeters, ddc:550, Imagery, Mars Express, Stereo image processing, Konferenzschrift, Pushbroom, Natural resources exploration, Remote sensing, Mapping, High Resolution Stereo Camera, Mars global surveyor, Photogrammetry, Maps, Exploration, Extra-terrestrial, Mars orbiter laser altimeters
Abstract

The images obtained by the HRSC (High Resolution Stereo Camera) on Mars Express show excellent potential for topographic mapping of the planet. The derived stereo models agree with topographic data obtained earlier by MOLA (Mars Orbiter Laser Altimeter) on the Mars Global Surveyor: For the image scenes from the Mars-Express commissioning phase that were studied, we find absolute differences in heights as small as 50 m and lateral positional differences along MOLA tracks of about 100 m. We show that HRSC effectively fills the gaps left between the MOLA tracks. SRC (Super Resolution Channel) images are well placed at their nominal geometric positions and reveal further detail within the HRSC context images. However, many of the images, fall short of the expected image quality for reasons to be examined. © 2004 International Society for Photogrammetry and Remote Sensing. All rights reserved.

Published
2005

345. The BepiColombo Laser Altimeter BELA: Instrument Description

Author

Seiferlin, K., Thomas, N., Spohn, T., Oberst, J., Michaelis, H., Gunderson, K., Whitby, J.A., and The BELA Team

Subjects
Space geodetic surveys, Gravitational fields, Instruments and techniques, Mercury, Remote sensing
Published
2005

346. BELA The BepiColombo Laser Altimeter

Author

Spohn, T., Thomas, N., Christensen, U., Oberst, J., Seiferlin, K., Micheaelis, H., Hilchenbach, M., and Gunderson, K.

Subjects
Interiors, Instruments and techniques, Mercury
Published
2005

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