PIA17975: 200,000!



MESSENGER has now surpassed 200,000 images acquired from orbit about Mercury! And there are still many more to come. In particular, acquiring NAC images when the spacecraft is closest to the planet is a priority for the remainder of the mission; such images will allow the highest resolution views of Mercury's surface to be captured. The four-image mosaic shown here is one of the first from the MDIS low-altitude imaging campaign. Among the details revealed are hollows that appear to have formed in one layer in the wall of this 15-kilometer-diameter crater.

This image was acquired as part of the MDIS low-altitude imaging campaign. During MESSENGER's second extended mission, the spacecraft makes a progressively closer approach to Mercury's surface than at any previous point in the mission, enabling the acquisition of high-spatial-resolution data. For spacecraft altitudes below 350 kilometers, NAC images are acquired with pixel scales ranging from 20 meters to as little as 2 meters.

Date acquired: December 05, 2013
Image Mission Elapsed Time (MET): 28560063, 65, 67, 69
Image ID: 5324381-84
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 72.4°
Center Longitude: 124.9° E
Resolution: 16 meters/pixel
Scale: The height and width of each image is 8.5 kilometers (5.3 miles)
Incidence Angle: 73.4°
Emission Angle: 10.8°
Phase Angle: 81.9°

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. MESSENGER acquired over 150,000 images and extensive other data sets. MESSENGER is capable of continuing orbital operations until early 2015.

For information regarding the use of images, see the MESSENGER image use policy .

Cataloging Keywords:

Name Value Additional Values
Target Mercury
System Mercury
Target Type Planet
Instrument Host MESSENGER
Host Type Orbiter
Instrument Mercury Dual Imaging System (MDIS)
Extra Keywords Crater, Grayscale, Radio
Acquisition Date
Release Date 2014-02-06
Date in Caption 2013-12-05
Image Credit NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
Source photojournal.jpl.nasa.gov/catalog/PIA17975
Identifier PIA17975