Showing posts with label Qi Bashi Crater. Show all posts
Showing posts with label Qi Bashi Crater. Show all posts

Saturday, July 6, 2013

Raden Saleh Crater


This color image shows Raden Saleh crater in a new light. The crater's bright ejecta rays are superimposed on the surrounding terrain, including a patch of dark low reflectance material (LRM). In the lower right corner, rays from Qi Baishi crater are also visible.

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.

Date acquired: May 08, 2013
Image Mission Elapsed Time (MET): 10356510, 10356502, 10356498
Image ID: 4029993, 4029991, 4029990
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: 2.04°
Center Longitude: 158.8° E
Resolution: 440 meters/pixel
Scale: Raden Saleh crater is about 23 km (14 miles) in diameter
Incidence Angle: 21.5°
Emission Angle: 38.1°
Phase Angle: 59.6°

Photo credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

Wednesday, August 3, 2011

The Rays of Qi Bashi Crater


This image, taken by MESSENGER's Narrow Angle Camera, captures Qi Bashi, the brightest crater at the right edge of the view. The brilliant ejecta rays of Qi Bashi extend mostly to the north and south, instead of in all directions. When an impact crater is formed, bright, fresh material is ejected out of the crater into the surrounding area; however, the asymmetrical ejecta as seen here necessitates an extremely low impact angle.

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: July 02, 2011
Image Mission Elapsed Time (MET): 218071882
Image ID: 452164
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: -3.15°
Center Longitude: 162.3° E
Resolution: 199 meters/pixel
Scale: This image is approximately 200 km across.
Incidence Angle: 3.2°
Emission Angle: 24.9°
Phase Angle: 28.1°

Photo credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington