Phobos - Viking 1 Orbiter

Hall crater and the south pole of Mars' Moon Phobos

Viking 1 orbiter view of Mars' satellite Phobos showing the south pole and Hall crater. The crater, at the top center, is at 75 S, 225 W and is 6 km in diameter. The south pole is just inside the rim of the crater at the 5:00 position. The image spans about 21 km from top to bottom. The direction to Mars is towards about 7:00. (Viking Orbiter 315A12)
Larger image: 334K

High resolution tiff file (1.0M)

Location & Time Information
Date/Time (UT): 1977-04-30 T 02:50:47
Distance/Range (km): 713.9
Central Latitude/Longitude (deg): -50.,000.
Orbit(s): 315

Imaging Information
Area or Feature Type: crater, pole
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): N/A
Phase Angle (deg): 15.
Instrument Look Direction: N/A
Surface Emission Angle (deg): N/A

Ordering Information
CD-ROM Volume: VO_1015
NASA Image ID number: 315A12
Other Image ID number: 31958653
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