A NASA Discovery mission to conduct the first orbital study
of the innermost planet
NASA logo carnegie institution logo JHU APL logo

Why Mercury?
The Mission
Gallery
Education
News Center
Science Operations
Who We Are
FAQs
Related Links
Contacts
Home

Download iPhone/iPad app Explore orbital data with quickmap Question and Answer Mercury Orbit Insertion Where is MESSENGER? Where is Mercury now? Subscribe to MESSENGER eNews



A Light and Dark Duo
Click on image to enlarge.
A Light and Dark Duo
Release Date: July 12, 2012
Topics: Caloris, Craters with Bright Material, Craters with Dark Material, Hollows, Low Reflectance Material (LRM), Tectonics, WAC



Date acquired: June 16, 2012
Image Mission Elapsed Time (MET): 248375300, 248375292, 248375296
Image ID: 2029102, 2029100, 2029101
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filters: 9, 7, 6 (996, 748, 433 nanometers) in red, green, and blue
Center Latitude: 36.79
Center Longitude: 166.8 E
Resolution: 205 meters/pixel
Scale: The center crater is 40 km (~24 mi.) in diameter
Incidence Angle: 36.7
Emission Angle: 0.1
Phase Angle: 36.7

Of Interest: Here we have a color view of two unnamed craters in Caloris basin. The false color emphasizes the contrast between the hollows and LRM on the craters' floors. In the upper right, the many graben and fractures in the Caloris floor material can be seen.

This image was acquired as part of MDIS's high-resolution 3-color imaging campaign. The 3-color campaign is a major mapping activity in MESSENGER's extended mission. It complements the 8-color base map (at an average resolution of 1 km/pixel) acquired during MESSENGER's primary mission by imaging Mercury's surface in a subset of the color filters at the highest resolution possible. The three narrow-band color filters are centered at wavelengths of 430 nm, 750 nm, and 1000 nm, and image resolutions generally range from 100 to 400 meters/pixel in the northern hemisphere.

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, MESSENGER acquired 88,746 images and extensive other data sets. MESSENGER is now in a yearlong extended mission, during which plans call for the acquisition of more than 80,000 additional images to support MESSENGER's science goals.

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.


   

   Top  | Contacts
© 1999-2014 by JHU/APL