Datei:PIA21486 - Break in Raised Tread on Curiosity Wheel.jpg
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Beschreibung
BeschreibungPIA21486 - Break in Raised Tread on Curiosity Wheel.jpg |
English: Two of the raised treads, called grousers, on the left middle wheel of NASA's Curiosity Mars rover broke during the first quarter of 2017, including the one seen partially detached at the top of the wheel in this image from the Mars Hand Lens Imager (MAHLI) camera on the rover's arm.
This image was taken on March 19, 2017, as part of a set used by rover team members to inspect the condition of the rover's six wheels during the 1,641st Martian day, or sol, of Curiosity's work on Mars. Holes and tears in the wheels worsened significantly during 2013 as Curiosity was crossing terrain studded with sharp rocks on the route from near its 2012 landing site to the base of Mount Sharp. Team members have used MAHLI systematically since then to watch for when any of the zig-zag shaped grousers begin to break. The last prior set of wheel-inspection images from before Sol 1641 was taken on Jan. 27, 2017, (Sol 1591) and revealed no broken grousers. Longevity testing with identical aluminum wheels on Earth indicates that when three grousers on a given wheel have broken, that wheel has reached about 60 percent of its useful life. Curiosity has driven well over 60 percent of the amount needed for reaching all the geological layers planned as the mission's science destinations, so the start of seeing broken grousers is not expected to affect the mission's operations. As with other images from Curiosity's cameras, all of the wheel-inspection exposures are available in the raw images collections at http://mars.nasa.gov/msl/multimedia/raw/. Curiosity's six aluminum wheels are about 20 inches (50 centimeters) in diameter and 16 inches (40 centimeters) wide. Each of the six wheels has its own drive motor, and the four corner wheels also have steering motors. MAHLI was built by Malin Space Science Systems, San Diego. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Science Laboratory Project for the NASA Science Mission Directorate, Washington. JPL designed and built the project's Curiosity rover. More information about Curiosity is online at http://www.nasa.gov/msl and http://mars.jpl.nasa.gov/msl/. |
Datum | 19 March 2017 (published 21 March 2017) |
Quelle | Catalog page · Full-res (JPEG · TIFF) |
Urheber | NASA/JPL-Caltech/MSSS |
Position auf dem Mars | 4° 42′ 45,93″ S, 137° 21′ 33,62″ O | Dieses und weitere Bilder auf Google Maps | -4.712758; 137.359339 |
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Diese Mediendatei wurde vom Jet Propulsion Lab der US-amerikanischen National Aeronautics and Space Administration (NASA) unter der Datei-ID PIA21486 kategorisiert. Diese Markierung zeigt nicht den Urheberrechtsstatus des zugehörigen Werks an. Es ist in jedem Falle zusätzlich eine normale Lizenzvorlage erforderlich. Siehe Commons:Lizenzen für weitere Informationen. Sprachen:
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This media is a product of the Mars Science Laboratory mission Credit and attribution belongs to the Mars Hand Lens Imager (MAHLI) team, NASA/JPL-Caltech/MSSS |
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Diese Datei ist gemeinfrei (Public domain11), da sie von der NASA11 erstellt worden ist. Die NASA-Urheberrechtsrichtlinie besagt, dass „NASA-Material nicht durch Urheberrecht geschützt ist, wenn es nicht anders angegeben ist“. (NASA-Urheberrechtsrichtlinie-Seite oder JPL Image Use Policy). | ||
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aktuell | 23:52, 27. Mär. 2017 | 1.446 × 825 (99 KB) | PhilipTerryGraham | User created page with UploadWizard |
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