Phobos - Viking 1 Orbiter

South polar region of Mars' moon, Phobos from 570 km

Phobos
Viking 1 Orbiter view of the south polar region of the Martian moon, Phobos. The south pole is at bottom left of the image. Just above this is the 6 km diameter crater, Hall, centered at 75 s, 225 w. This crater is named for Alseph Hall, discoverer of Phobos in 1877. The image extends up to about 15 S longitude. (Viking Orbiter 244A72)
Larger image:

High resolution tiff file (1.0 Mb)


Location & Time Information
Date/Time (UT): 1977-02-21 T 01:12:14
Distance/Range (km): 573.9
Central Latitude/Longitude (deg): -36.,195.
Orbit(s): 244

Imaging Information
Area or Feature Type: south pole, crater
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): 10.
Instrument Look Direction: N/A
Surface Emission Angle (deg): N/A

Ordering Information
CD-ROM Volume: VO_1014
NASA Image ID number: 244A72
Other Image ID number: 30645907
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.