Phobos - Viking 1 Orbiter

View of the limb of Mars' moon Phobos along 40 N latitude

Viking 1 Orbiter view of the limb of the Martian moon Phobos. The limb runs approximately along 40 N latitude. North is at 1:00 and the image is about 10 km across. This image gives a good view of Phobos' irregular surface, centered at about 10 N, 230 W. This image was taken on 26 February 1977 from a distance of 350 km. (Viking Orbiter 250A13)
Larger image: 275K

High resolution tiff file (1.0M)

Location & Time Information
Date/Time (UT): 1977-02-26 T 18:56:24
Distance/Range (km): 353.5
Central Latitude/Longitude (deg): +10.,230. W
Orbit(s): 250

Imaging Information
Area or Feature Type: crater
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): 5.
Instrument Look Direction: N/A
Surface Emission Angle (deg): N/A

Ordering Information
CD-ROM Volume: VO_1014
NASA Image ID number: 250A13
Other Image ID number: 30756586
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