Engineering:High Resolution Stereo Camera
High Resolution Stereo Camera (HRSC) is a camera experiment on Mars Express.[1] A version for Earth called HRSC-AX was also developed, as was a version for Mars 96.[1] It has four main parts: camera head, super resolution channel, instrument frame, and digital unit.[1] At an altitude of 250 km from Mars, SRC can produce images with a resolution of 2.3 meters/pixel of 2.35 km square Mars terrain.[1] It has 9 channels and can produce digital terrain models.[1] A typical image from HRSC of Mars has a resolution ranging from 12.5 for nadir (directly down) to 25 m/pixel for the farthest off-nadir shots, which can be up to 18.9 degrees.[2] By 2012, about 61.5% of the surface of Mars was mapped at a resolution of at least 20 meters per pixel by the Mars Express mission using this camera.[3] Another area of study is repeat imaging, to allow the study of dynamic processes on Mars.[2][4] Another trick is to make short videos of the Mars surface by taking advantage of the pushbroom nature of the detector, each section is slightly offset for a different color, but when combined each view be used to make a short animation.[5]
By the start of 2015, about 70% of Mars had been imaged by Mars at resolutions greater than 20 m per pixel, and 97% at resolutions of least 60 m per pixel.[6]
Example observation
Orcus Patera, imaged by the HRSC:
See also
- Trace Gas Orbiter (next ESA Mars orbiter, arrived 2016)
References
- ↑ 1.0 1.1 1.2 1.3 1.4 DLR – HRSC on Mars Express
- ↑ 2.0 2.1 "High-resolution repeat imaging allows detecting dynamic surface processes on Mars". http://phys.org/news/2015-12-high-resolution-imaging-dynamic-surface-mars.html.
- ↑ ESA -Mapping Mars
- ↑ Sidiropoulos, P.; Muller, J.-P. (2015). "On the status of orbital high-resolution repeat imaging of Mars for the observation of dynamic surface processes". Planetary and Space Science 117: 207–222. doi:10.1016/j.pss.2015.06.017. Bibcode: 2015P&SS..117..207S. http://discovery.ucl.ac.uk/1472609/1/1-s2.0-S0032063315001956-main.pdf.
- ↑ TPS – Capturing Martian Weather in Motion – November 4, 2016
- ↑ THE HIGH RESOLUTION STEREO CAMERA (HRSC): STATUS AND FACTS (2015)
External links
- ESA – High Resolution Stereo Camera
- Aeolis Mons (Mount Sharp) and Gale – Image/HRSCview
- Aeolis Mons (Mount Sharp) – HRSCview (oblique view looking east)
- HRSC + Phobos (with SRC shots overlaid)
- HRSC Press release archive (2004–2012)
- HRSC with SRC of Victoria Crater and area near Opportunity rover's landing site
- Clouds in Nilokeras Scopulus
- TPS – Capturing Martian Weather in Motion – November 4, 2016
- THE HIGH RESOLUTION STEREO CAMERA (HRSC): STATUS AND FACTS (2015) (Includes graph of cumulative surface coverage by resolution, up to 2015)
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