PIA17925: Third Time's a Charm
 Target Name:  Mercury
 Is a satellite of:  Sol (our sun)
 Mission:  MESSENGER
 Spacecraft:  MESSENGER
 Instrument:  MDIS - Narrow Angle
 Product Size:  1020 x 1024 pixels (w x h)
 Produced By:  Johns Hopkins University/APL
 Full-Res TIFF:  PIA17925.tif (1.046 MB)
 Full-Res JPEG:  PIA17925.jpg (181.5 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

As anticipated in Monday's posting, MESSENGER has started to send back its two-month backlog of images. Included in the recently arrived batch is this triple take of Xiao Zhao. This image is very similar to this image from June 2012 and this image from December 2012; Xiao Zhao is one of the locations being repeatedly imaged to look for any slight hints of change.

This image was acquired as a high-resolution targeted observation. Targeted observations are images of a small area on Mercury's surface at resolutions much higher than the 200-meter/pixel morphology base map. It is not possible to cover all of Mercury's surface at this high resolution, but typically several areas of high scientific interest are imaged in this mode each week.

Date acquired: December 04, 2013
Image Mission Elapsed Time (MET): 28472584
Image ID: 5318200
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 10.65
Center Longitude: 123.94 E
Resolution: 34 meters/pixel
Scale: Xiao Zhao is 24 km (15 miles) in diameter
Incidence Angle: 24.9
Emission Angle: 32.4
Phase Angle: 44.7

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.

Image Credit:
NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

Image Addition Date: