Mars - Viking 1 Orbiter

Low pressure storm cell near the north pole of Mars

Mars
This Viking 1 Orbiter image shows a low pressure cell near the north pole of Mars. This cyclonic storm is related to Mars' polar front, the boundary between the cold polar air and the warmer air to the south. These clouds are low in the atmosphere and most likely composed of water ice. This image was taken in Martian northern mid-summer at 6:55 local time. The image is 1,150 km across and north is at 11:30. (Viking Orbiter 783A42)
Larger image:

High resolution tiff file (1.0 Mb)


Location & Time Information
Date/Time (UT): 1978-08-09 T 16:31:21
Distance/Range (km): 28639.5
Central Latitude/Longitude (deg): +61.77/231.86
Orbit(s): 783

Imaging Information
Area or Feature Type: Cloud
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): 68.46
Phase Angle (deg): 112.52
Instrument Look Direction: N/A
Surface Emission Angle (deg): 53.26

Ordering Information
CD-ROM Volume: VO_1029
NASA Image ID number: 783A42
Other Image ID number: 40956783
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.