Spring in Inca City II
NASA/JPL/University of Arizona
Spring in Inca City II
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It is about two weeks later in Inca City and the season is officially spring. Numerous changes have occurred. Large blotches of dust cover the araneiforms. Dark spots on the ridge show places where the seasonal polar ice cap has ruptured, releasing gas and fine material from the surface below.

At the bottom of the image fans point in more than one direction from a single source, showing that the wind has changed direction while gas and dust were flowing out. Was the flow continuous or has the vent opened and closed?

Written by: Candy Hansen  (13 November 2014)
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Acquisition date
20 August 2014

Local Mars time:
17:05

Latitude (centered)
-81.439°

Longitude (East)
295.947°

Range to target site
247.4 km (154.6 miles)

Original image scale range
49.5 cm/pixel (with 2 x 2 binning) so objects ~149 cm across are resolved

Map projected scale
50 cm/pixel

Map projection
Polarstereographic

Emission angle:
2.8°

Phase angle:
85.0°

Solar incidence angle
87°, with the Sun about 3° above the horizon

Solar longitude
181.7°, Northern Autumn

For non-map projected images
North azimuth:  110°
Sub-solar azimuth:  33.3°
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Merged RGB
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RGB color
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map-projected   (300MB)

IRB color
map-projected   (180MB)

JP2 EXTRAS
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map-projected  (139MB)
non-map           (203MB)

IRB color
map projected  (64MB)
non-map           (161MB)

Merged IRB
map projected  (277MB)

Merged RGB
map-projected  (263MB)

RGB color
non map           (165MB)
ADDITIONAL INFORMATION
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Color label
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Merged RGB label
EDR products
HiView

NB
IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

USAGE POLICY
All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona

POSTSCRIPT
NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.