Mars - Viking 2 Orbiter

Dust storm at the edge of the south polar cap, Mars

Martian dust storm near the edge of the shrinking polar cap (seen in the extreme lower left of the frame) taken by the Viking 2 Orbiter. This image shows the end of the first global dust storm on the day after perihelion, at 15:00 local time. The storm is about 200 km across, and the frame width is 710 km. North is at 1:30. (Viking Orbiter 248B57)
Larger image: 272K

High resolution tiff file (1.0M)

Location & Time Information
Date/Time (UT): 1977-05-01 T 02:54:40
Distance/Range (km): 22821.6
Central Latitude/Longitude (deg): -64.38/061.59
Orbit(s): 248

Imaging Information
Area or Feature Type: Dust storm, Polar cap
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: Violet (3)
Illumination Incidence Angle (deg): 49.51
Phase Angle (deg): 48.92
Instrument Look Direction: N/A
Surface Emission Angle (deg): 15.54

Ordering Information
CD-ROM Volume: VO_1055
NASA Image ID number: 248B57
Other Image ID number: 51624758
NSSDC Data Set ID (Photo): 75-083A-01D
NSSDC Data Set ID (CD): 75-083A-01a
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: Dr. David R. Williams,

Last updated: 24 September 2015