October 24, 2013
Image Mission Elapsed Time (MET):
24470528, 24960452, 24470516
5033545, 5068359, 5033542
Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
9, 7, 6 (996, 748, 433 nanometers) in red, green, and blue
The larger crater near the top of the image is approximately 54 km (33.5 mi.) in diameter.
Today's image features several craters near the eastern edge of the Caloris basin
. The larger craters have excavated low reflectance material
, and both have hollows
forming within their floors. Reddish deposits that exhibit a spectral signature
similar to pyroclastics
occur in the northeastern quadrant of this scene, suggesting that this region may have once been the site of explosive volcanism
This image was acquired as a targeted high-resolution 11-color image set. Acquiring 11-color targets is a new campaign that began in March 2013 and that utilizes all of the WAC's 11 narrow-band color filters. Because of the large data volume involved, only features of special scientific interest are targeted for imaging in all 11 colors.
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. During the first two years of orbital operations, MESSENGER acquired over 150,000 images and extensive other data sets. MESSENGER is capable of continuing orbital operations until early 2015.
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
For information regarding the use of MESSENGER images, see the image use policy.