Frosty Slopes in Late Spring
NASA/JPL-Caltech/UArizona
Frosty Slopes in Late Spring
ESP_039114_1115  Science Theme: Mass Wasting Processes
This HiRISE image, approximately 1.5 by 3 kilometers, shows frosted gullies on a south-facing slope within a crater.

At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted. Gullies are not the only active geologic process going on here. A small crater is visible at the bottom of the slope.

Written by: Livio Tornabene, Ryan Hopkins, Kayle Hansen and Eric Pilles (narration: Tre Gibbs)  (17 December 2014)
 
Acquisition date
30 November 2014

Local Mars time
15:49

Latitude (centered)
-68.460°

Longitude (East)
1.289°

Spacecraft altitude
253.5 km (157.5 miles)

Original image scale range
50.7 cm/pixel (with 2 x 2 binning) so objects ~152 cm across are resolved

Map projected scale
50 cm/pixel

Map projection
Polarstereographic

Emission angle
0.5°

Phase angle
58.1°

Solar incidence angle
58°, with the Sun about 32° above the horizon

Solar longitude
243.4°, Northern Autumn

For non-map projected images
North azimuth:  99°
Sub-solar azimuth:  30.3°
JPEG
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

JP2
Black and white
map-projected   (240MB)

IRB color
map-projected   (133MB)

JP2 EXTRAS
Black and white
map-projected  (108MB)
non-map           (152MB)

IRB color
map projected  (48MB)
non-map           (143MB)

Merged IRB
map projected  (241MB)

Merged RGB
map-projected  (211MB)

RGB color
non map           (120MB)
BONUS
4K (TIFF)
8K (TIFF)
10K (TIFF)

ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
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-Caltech/UArizona

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.