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HRSC Press Release #268 - Apollinaris Patera (orbit 0987)
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On 26 October 2004 the High-Resolution Stereo Camera (HRSC) onboard the ESA spacecraft Mars Express obtained image data in orbit 987 with a ground resolution of approximately 11.1 metres per pixel. The data were acquired in the region of Apollinaris Patera, at approximately 7.2° southern latitude and 174.6° eastern longitude.
These images show the caldera of Apollinaris Patera, a shield volcano that is located at the edge of the southern highlands to Elysium Planitia. The volcano measures approximately 180 by 280 km at its base and rises to a maximum of 5 km above the surrounding terrain. The caldera has a diameter of approximately 80 km. Partly the terrain is covered by thin diffuse whitish appearing clouds in the true-color image. In the false-color image, the clouds appear as bluish-tinted areas.
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Because of its crater chronologically determined, high age of 3.7 billion years and its complex morphology, scientists need additional image data to improve the understanding the early geologic history of Mars. Therefore, the HRSC experiment is of particular importance since it provides new image data for this region, permitting improved studies of the planet's volcanic history. Data from the HRSC experiment, coupled with information from additional instruments on Mars Express and other missions, improves our understanding of the geologic evolution of the red planet and paves the way for future Mars missions.
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.
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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.
hochaufgelöste Bilddaten / high resolution image data
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© Copyright: ESA/DLR/FU Berlin (G. Neukum)