Phobos - Viking 1 Orbiter

Linear features on Mars' moon Phobos

Viking 1 Orbiter of linear features on the Martian satellite Phobos. The features are probably the result of impacts on Phobos surface. The north pole is just off the top of the image to the left. The image is about 13 km from top to bottom. The Mars facing point on Phobos is just in the terminator at the lower left corner. (Viking Orbiter 249A03)
Larger image: 353K

High resolution tiff file (1.0M)

Location & Time Information
Date/Time (UT): 1977-02-25 T 19:53:53
Distance/Range (km): 434.5
Central Latitude/Longitude (deg): +30.,320 W
Orbit(s): 249

Imaging Information
Area or Feature Type: crater, lineament
Instrument: Visual Imaging Subsystem - Camera A
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): N/A
Phase Angle (deg): 90
Instrument Look Direction: N/A
Surface Emission Angle (deg): N/A

Ordering Information
CD-ROM Volume: VO_1014
NASA Image ID number: 249A03
Other Image ID number: 30738070
NSSDC Data Set ID (Photo): 75-075A-01B
NSSDC Data Set ID (CD): 75-075A-01c
Other ID: N/A


[NASA Logo] Authors/Curators:

Dave Williams,, (301) 286-1258
Code 690.1, NASA Goddard Space Flight Center
Greenbelt, MD 20771, USA

Jay Friedlander,, (301) 286-7172
Code 612.4, NASA Goddard Space Flight Center
Greenbelt, MD 20771, USA

NASA Official: Ed Grayzeck,

Last updated: 24 September 2015