Mars - Viking 1 Orbiter

Fractured northern plains, Mars

This Viking 1 Orbiter image shows a pattern of fractures commonly found in the northern plains of Mars. These polygons are approximately 5 to 10 km across, and are similar in appearance to certain terrestrial processes, but on a much larger scale. Note that the fracture crevasses are fairly wide with flat floors. North is at ~11:00 in this image, which is about 50 km wide. (Viking Orbiter 035A64)
Larger image:

High resolution tiff file (1.0 Mb)

Location & Time Information
Date/Time (UT): 1976-07-25 T 15:24:39
Distance/Range (km): 1851.4
Central Latitude/Longitude (deg): +40.50/014.01
Orbit(s): 35

Imaging Information
Area or Feature Type: Fracture
Instrument: Visual Imaging Subsystem - Camera B
Instrument Resolution (pixels): 1056 x 1182, 7 bit
Instrument Field of View (deg): 1.54 x 1.69
Filter: Clear (4)
Illumination Incidence Angle (deg): 77.01
Phase Angle (deg): 88.35
Instrument Look Direction: N/A
Surface Emission Angle (deg): 12.63

Ordering Information
CD-ROM Volume: VO_1010
NASA Image ID number: 035A64
Other Image ID number: 26588037
NSSDC Data Set ID (Photo): 75-075A-01B
NSSDC Data Set ID (CD): 75-075A-01c
Other ID: N/A

Updated 20 May 2003, DRW.