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The High Resolution Imaging Science Experiment (HiRISE) during MRO’s Primary Science Phase (PSP) |
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| Authors: | Alfred S McEwen Maria E Banks Kris Becker James W Bergstrom Edward Bortolini Shane Byrne Frank C Chuang Ingrid Daubar Donald G Deardorff W Alan Delamere Colin M Dundas Yisrael Espinoza Kathryn E Fishbaugh Paul E Geissler Jennifer L Griffes Virginia C Gulick Kenneth E Herkenhoff Windy L Jaeger Bob Kanefsky Robert King Kelly J Kolb Alexandra Lefort Kevin W Lewis Sarah Mattson Michael T Mellon Moses P Milazzo Tahirih Motazedian Albert Ortiz Joseph Plassmann Patrick S Russell Mindi L Searls Steven W Squyres Nicolas Thomas Livio L Tornabene Circe Verba James J Wray |
| Institution: | a Lunar and Planetary Lab, University of Arizona, Tucson, AZ 85721, USA b U.S. Geological Survey, 2255 N. Gemini Drive, Flagstaff, AZ 86001, USA c Ball Aerospace & Technologies Corp., 1600 Commerce St., Boulder, CO 80301, USA d NASA Ames Research Center and SETI Institute, Moffett Field, CA 94035, USA e Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA f Planetary Science Institute, 1700 E. Ft. Lowell, Tucson, AZ 85719, USA g New Mexico Museum of Natural History and Science, 1901 Mountain Road NW, Albuquerque, NM 87104, USA h Department of Earth and Environmental Science, Temple University, 1901 N. 13th St. Philadelphia, PA 19122, USA i Delamere Support Systems, 525 Mapleton Ave., Boulder, CO 80304, USA j Smithsonian Institution, National Air and Space Museum, 6th at Independence SW, Washington, DC 20560, USA k Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA l University of Bern, Sidlerstr. 5, CH-3012 Bern, Switzerland m University of Colorado, 392 UCB, Boulder, CO 80309, USA n Cornell University, 428 Space Sciences Building, Ithaca, NY 14853, USA o Applied Physics Laboratory, Laurel, MD 20723, USA |
| Abstract: | The High Resolution Imaging Science Experiment (HiRISE) on the Mars Reconnaissance Orbiter (MRO) acquired 8 terapixels of data in 9137 images of Mars between October 2006 and December 2008, covering ∼0.55% of the surface. Images are typically 5-6 km wide with 3-color coverage over the central 20% of the swath, and their scales usually range from 25 to 60 cm/pixel. Nine hundred and sixty stereo pairs were acquired and more than 50 digital terrain models (DTMs) completed; these data have led to some of the most significant science results. New methods to measure and correct distortions due to pointing jitter facilitate topographic and change-detection studies at sub-meter scales. Recent results address Noachian bedrock stratigraphy, fluvially deposited fans in craters and in or near Valles Marineris, groundwater flow in fractures and porous media, quasi-periodic layering in polar and non-polar deposits, tectonic history of west Candor Chasma, geometry of clay-rich deposits near and within Mawrth Vallis, dynamics of flood lavas in the Cerberus Palus region, evidence for pyroclastic deposits, columnar jointing in lava flows, recent collapse pits, evidence for water in well-preserved impact craters, newly discovered large rayed craters, and glacial and periglacial processes. Of particular interest are ongoing processes such as those driven by the wind, impact cratering, avalanches of dust and/or frost, relatively bright deposits on steep gullied slopes, and the dynamic seasonal processes over polar regions. HiRISE has acquired hundreds of large images of past, present and potential future landing sites and has contributed to scientific and engineering studies of those sites. Warming the focal-plane electronics prior to imaging has mitigated an instrument anomaly that produces bad data under cold operating conditions. |
| Keywords: | Mars surface Mars climate Mars polar geology Image processing |
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