Mars - Mars Global Surveyor

Olympus Mons on Mars

This image of the giant martian volcano Olympus Mons was taken over a 5 minute period at about 5:30 p.m. local time. Over the time the image was collected the altitude of MGS rose from 176 to 310 km. Olympus Mons is 25 km high and nearly 550 km across. The central caldera is 66 x 83 km in size. The bluish features to the right are water-ice clouds which tend to form around the volcano in the late afternoon. The color was synthesized using red and blue filter images. The image is centered at 23 N, 135 W, resolution of the image is about 1 km and north is up. (Mars Global Surveyor, MRPS85298)
Larger image: [an error occurred while processing this directive]

High resolution tiff file (1.9 Mb)

Location & Time Information
Date/Time (UT): 1997-10-20 T 10:58:37
Distance/Range (km): 205.
Central Latitude/Longitude (deg): 23, 135 W
Orbit(s): 24

Imaging Information
Area or Feature Type: volcano, caldera, clouds
Instrument: Mars Orbiter Camera (MOC)
Instrument Resolution (pixels): 3456 line array, 8-bit
Instrument Field of View (deg): 140
Filter: red, blue
Illumination Incidence Angle (deg): 81.
Phase Angle (deg): 71.
Instrument Look Direction: N/A
Surface Emission Angle (deg): 10.

Ordering Information
CD-ROM Volume: MGSC_0001 (raw images)
NASA Image ID number: MRPS85298
Other Image ID number:
NSSDC Data Set ID (Photo): XD-12A
NSSDC Data Set ID (CD): 96-062A-01A (raw images)
Other ID: MOC2-13 P024-01,02
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Updated 23 May 2003, DRW.