Mars - Viking 1 Orbiter

Parana Valles drainage system in Margaritifer Sinus, Mars

This Viking 1 Orbiter image shows the Parana Valles, a digitate valley network in the Margaritifer Sinus region of Mars. These networks look similar to river drainage networks on Earth, and were presumably formed by running water sometime in Mars' past. This image is about 250 km across. North is at ~10:30. (Viking Orbiter 084A47)
Larger image: 452K

High resolution tiff file (1.0M)

Location & Time Information
Date/Time (UT): 1976-09-13 T 13:26:39
Distance/Range (km): 8584.6
Central Latitude/Longitude (deg): -23.84/008.75
Orbit(s): 84

Imaging Information
Area or Feature Type: Valley, Valles, Fluvial
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): 65.83
Phase Angle (deg): 80.10
Instrument Look Direction: N/A
Surface Emission Angle (deg): 14.41

Ordering Information
CD-ROM Volume: VO_1012
NASA Image ID number: 084A47
Other Image ID number: 27550742
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