PIA14812: Radar-bright Craters in Goethe

Radar-bright Craters in Goethe


This image shows a small portion of the floor of Goethe basin . Both the dark crater near the bottom of the image and the crater extending out the left corner of the image are known to host radar-bright features . The radar-bright features may be due to water ice that is stable in the permanently shadowed interiors of these craters.

This image was acquired as part of MDIS's high-resolution surface morphology base map. The surface morphology base map will cover more than 90% of Mercury's surface with an average resolution of 250 meters/pixel (0.16 miles/pixel or 820 feet/pixel). Images acquired for the surface morphology base map typically have off-vertical Sun angles (i.e., high incidence angles) and visible shadows so as to reveal clearly the topographic form of geologic features.

Date acquired: August 19, 2011
Image Mission Elapsed Time (MET): 222275250
Image ID: 652832
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 7 (748 nanometers)
Center Latitude: 83.35°
Center Longitude: 320.4° E
Resolution: 82 meters/pixel
Scale: The dark crater near the bottom center of the image is 27 kilometers (17 miles) in diameter
Incidence Angle: 86.3°
Emission Angle: 0.1°
Phase Angle: 86.2°

Background Info:

The MESSENGER spacecraft is the first ever to orbit the planet Mercury, and the spacecraft's seven scientific instruments and radio science investigation are unraveling the history and evolution of the Solar System's innermost planet. Visit the Why Mercury? section of this website to learn more about the key science questions that the MESSENGER mission is addressing. During the one-year primary mission, MDIS is scheduled to acquire more than 75,000 images in support of MESSENGER's science goals.

These images are from MESSENGER, a NASA Discovery mission to conduct the first orbital study of the innermost planet, Mercury. For information regarding the use of images, see the MESSENGER image use policy .

Cataloging Keywords:

Name Value Additional Values
Target Mercury
Target Type Planet
Instrument Host MESSENGER
Host Type Orbiter
Instrument Mercury Dual Imaging System (MDIS)
Detector Wide Angle Camera (WAC)
Extra Keywords Crater, Grayscale, Map, Radar, Radio, Shadow, Water
Acquisition Date
Release Date 2011-09-09
Date in Caption 2011-08-19
Image Credit NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
Source photojournal.jpl.nasa.gov/catalog/PIA14812
Identifier PIA14812