HiRISE | Glaciation at the Eastern Hellas Margin (ESP_036947

NASA/JPL-Caltech/UArizona

Glaciation at the Eastern Hellas Margin
ESP_036947_1390 Science Theme: Geologic Contacts/Stratigraphy

HICLIP
1080p (MP4)
Audio (MP3)

WALLPAPER
800
1024
1152
1280
1440
1600
1920
2048
2560
2880

HIFLYER
PDF (11 x 17)

HISLIDES
PowerPoint
Keynote
PDF

Hellas Crater in the ancient highlands contains some of the clearest evidence on Mars for glacial processes. This image, on the eastern margin of the giant impact crater, shows a number of features consistent with glaciation.

There are roughly north-south running ridges and troughs which mark the deposition of sediment called moraine underneath or beside a glacier. There are also sinuous channels which may formed from meltwater underneath a glacier. A small (roughly 4 x 4 kilometer) cutout shows an example of the moraine and meltwater channel.

Written by: John Bridges (narration: Tre Gibbs) (13 August 2014)

Acquisition date
14 June 2014

Local Mars time
15:39

Latitude (centered)
-40.681°

Longitude (East)
100.767°

Spacecraft altitude
253.4 km (157.5 miles)

Original image scale range
53.8 cm/pixel (with 2 x 2 binning) so objects ~161 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
19.3°

Phase angle
89.7°

Solar incidence angle
74°, with the Sun about 16° above the horizon

Solar longitude
145.7°, Northern Summer

For non-map projected images
North azimuth: 95°
Sub-solar azimuth: 41.3°

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   (365MB)

IRB color
map-projected   (224MB)

JP2 EXTRAS
Black and white
map-projected (191MB)
non-map           (184MB)

IRB color
map projected (84MB)
non-map           (166MB)

Merged IRB
map projected (335MB)

Merged RGB
map-projected (323MB)

RGB color
non map           (164MB)

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.