“High Resolution Stereo Camera”的意思、由来-开放百科全书

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High Resolution Stereo Camera

释义

Example observation
See also
References
External links

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 other 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

Here is Orcus Patera, imaged by the HRSC:

{{multiple image
|align = center
|direction = vertical
|image1 = Orcus Patera by HRSC.jpg
|width = 800
|caption1 = Mars Express HRSC view of Orcus Patera (Courtesy of the ESA/DLR/FU Berlin (G. Neukum))
|image2 = Elevation of Orcus Patera and surroundings.jpg
|caption2 = Mars Express HRSC view of Orcus Patera with colors for elevation (Courtesy of the ESA/DLR/FU Berlin (G. Neukum))
}}

References

1. ^¹²³⁴DLR - HRSC on Mars Express {{webarchive|url=https://web.archive.org/web/20120117135618/http://berlinadmin.dlr.de/Missions/express/kamera/kameraeng.shtml |date=2012-01-17 }}
2. ^¹{{Cite web | url=http://phys.org/news/2015-12-high-resolution-imaging-dynamic-surface-mars.html | title=High-resolution repeat imaging allows detecting dynamic surface processes on Mars}}
3. ^ESA -Mapping Mars
4. ^{{cite journal| doi=10.1016/j.pss.2015.06.017 | volume=117 | title=On the status of orbital high-resolution repeat imaging of Mars for the observation of dynamic surface processes | year=2015 | journal=Planetary and Space Science | pages=207–222 | last1 = Sidiropoulos | first1 = P. | last2 = Muller | first2 = J.-P.| bibcode=2015P&SS..117..207S }}
5. ^TPS - Capturing Martian Weather in Motion - November 4, 2016
6. ^[https://elib.dlr.de/100711/1/1057.pdf THE HIGH RESOLUTION STEREO CAMERA (HRSC): STATUS AND FACTS (2015) ]

External links

ESA - High Resolution Stereo Camera
Aeolis Mons (Mt. Sharp) and Gale - Image/HRSCview
Aeolis Mons (Mt. Sharp) - HRSCview (oblique view looking east)
HRSC + Phobos (with SRC shots overlaid)
- Phobos by HRSC
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
[https://elib.dlr.de/100711/1/1057.pdf THE HIGH RESOLUTION STEREO CAMERA (HRSC): STATUS AND FACTS (2015) ] (Includes graph of cumulative surface coverage by resolution, up to 2015)

4 : Mars Express|Spacecraft instruments|Mars imagers|Stereo cameras

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Example observation

See also

References

External links