Mars - Viking 2 Orbiter

Dust storm in the Thaumasia region of Mars

This Viking 2 Orbiter image shows a large dust storm over the Thaumasia region on Mars. This large disturbance soon grew into the first global dust storm observed by the Viking Orbiters. This image was taken at 9:00 local time near perihelion when heating of Mars is at a maximum. The image is at 1400 km across and north is at 1:00. (Viking Orbiter 176B02)
Larger image: 345K

High resolution tiff file (1.0M)

Location & Time Information
Date/Time (UT): 1977-02-17 T 00:44:25
Distance/Range (km): 36415.8
Central Latitude/Longitude (deg): -42.41/107.97
Orbit(s): 176

Imaging Information
Area or Feature Type: Dust storm
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: Red (6)
Illumination Incidence Angle (deg): 49.09
Phase Angle (deg): 56.50
Instrument Look Direction: N/A
Surface Emission Angle (deg): 61.49

Ordering Information
CD-ROM Volume: VO_1054
NASA Image ID number: 176B02
Other Image ID number: 50215157
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