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12.05.2010
HRSC Press Release #463 - Meridiani Planum (orbit 2097)
Perspective view [1] |
On 1 September 2005 the High-Resolution Stereo Camera (HRSC), under the leadership of the Principal Investigator Prof. Dr. Gerhard Neukum of Freie Universitaet Berlin, onboard the ESA spacecraft Mars Express obtained image data in orbit 2097 with a ground resolution of approximately 13 meters per pixel. The data were acquired in the region Meridiani Planum at approximately 2° northern latitude and 352° eastern longitude.
Context Map [2] |
Meridiani Planum ist eine ausgedehnte Ebene im nördlichen Tiefland des Mars. Sie liegt zwischen der Tharsis Region im Westen und dem großen Einschlagbecken Hellas Planitia im Südosten. Die Region bildet bei der Betrachtung des Mars mit einem Teleskop eine auffällig dunkle Färbung. Aus diesem Grund wurde die Region Meridiani Planum als Bezugspunkt für das geographische Koordinatensystem des Mars gewählt; der Nullmeridian verläuft quer durch diese Region. Das abgebildete Gebiet ist mit einer Ausdehnung von 127 km x 63 km und einer Fläche von ca. 8000 km² etwa so groß wie Zypern.
Meridiani Planum, a plane in the northern lowlands of Mars, is located half way between the Tharsis Region to the west and the Hellas Planitia Impact Basin to the southeast. Observing Mars with a telescope, Meridiani Planum is a striking, dark coloured feature. This was one reason to chose this region as a center of reference for a geographic coordinate system for Mars; the prime meridian runs through this region. The region extends 127 km x 63 km and covers an area of roughly 8000 km² which is about the size of Cypress.
Color-coded elevation model [3] |
In der Bildmitte ist ein etwa 50 Kilometer großer Einschlagskrater zu erkennen, an dessen Boden sich dunkelrot bis dunkelgrau gefärbtes Material befindet (Lagekarte, Box 1). Deutlich sind am Kraterboden punktförmige, teilweise tropfenförmige Erhebungen zu erkennen. Möglicherweise handelt es sich hierbei um verwitterungsresistenteres Material. Das weichere Material wurde durch die hier vorherrschende Nordostwinde ausgeblasen und bildet die auffällige Verwehung am südwestlichen Rand des Kraters (Lagekarte, Box 2). Höchstwahrscheinlich handelt es sich bei dem Material am Boden des Kraters um vulkanische Aschenablagerungen, die hauptsächlich aus dunklen Mineralen, z.B. Olivin und Pyroxen, bestehen.
Feature Map [4] |
Nadir Image [5] |
RGB Colour Image [6] |
Red-cyan anaglyph [7] |
The southern area exhibits linear, very dark coloured features (feature map, box 5). These features are located on the lee side of topographic highs or ridges. They most likely represent deposits of ash-rich material which was blown out of the crater and re-deposited on the lee side of the ridges.
Perspective view #2 [8] |
Perspective view #3 [9] |
The colour scenes have been derived from the three HRSC-colour channels and the nadir channel. The perspective views have been calculated from the digital terrain model derived from the stereo channels. The anaglyph image was calculated from the nadir and one stereo channel. The black and white high resolution images were derived form the nadir channel which provides the highest detail of all channels.
Perspective view #4[10] |
The High Resolution Stereo Camera (HRSC) experiment on the ESA Mars Express Mission is led by the Principal Investigator (PI) Prof. Dr. Gerhard Neukum who also designed the camera technically. The science team of the experiment consists of 40 Co-Investigators from 33 institutions and 10 nations. The camera was developed at the German Aerospace Center (DLR) under the leadership of the PI G. Neukum and built in cooperation with industrial partners (EADS Astrium, Lewicki Microelectronic GmbH and Jena-Optronik GmbH). The experiment on Mars Express is operated by the DLR Institute of Planetary Research, through ESA/ESOC. The systematic processing of the HRSC image data is carried out at DLR. The scenes shown here were created by the PI-group at the Institute for Geological Sciences of the Freie Universitaet Berlin in cooperation with the German Aerospace Center (DLR), Institute of Planetary Research, Berlin.
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hochaufgelöste Bilddaten / high resolution image data
Context Map [2]: |
Color-coded elevation model [3]: |
Feature Map [4]: |
Nadir Image [5]: |
RGB Colour Image [6]: |
Red-cyan anaglyph [7]: |
Perspective view [1]: |
Perspective view #2 [8]: |
Perspective view #3 [9]: |
Perspective view #4[10]: |
© Copyright: ESA/DLR/FU Berlin (G. Neukum)