|
Close-up Shot of To Ngoc Van
- Click the image above for a larger view
- Full-Res JPEG (1560 x 1565) (251.2 kB)
- Full-Res TIFF (1560 x 1565) (2.4 MB)
Caption:
Prominent near the center of the degraded crater To Ngoc Van is an irregularly shaped pit. Examples of pit-floor craters have been identified across Mercury's surface and are likely formed by past volcanic activity . To Ngoc Van was named in 2009 in honor of the 20 th century Vietnamese painter.
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 250-meter/pixel (820 feet/pixel) morphology base map or the 1-kilometer/pixel (0.6 miles/pixel) color base map. It is not possible to cover all of Mercury's surface at this high resolution during MESSENGER's one-year mission, but several areas of high scientific interest are generally imaged in this mode each week.
Date acquired:
November 08, 2011
Image Mission Elapsed Time (MET):
229277972
Image ID:
988708
Instrument:
Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter:
7 (748 nanometers)
Center Latitude:
52.89°
Center Longitude:
248.6° E
Resolution:
68 meters/pixel
Scale:
The irregularly shaped pit is roughly 20 kilometers (12 miles) across
Incidence Angle:
60.3°
Emission Angle:
23.0°
Phase Angle:
83.4°
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. 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, MDIS is scheduled to acquire more than 75,000 images in support of MESSENGER's science goals.
These images are from MESSENGER, a NASA Discovery mission to conduct the first orbital study of the innermost planet, Mercury. For information regarding the use of images, see the MESSENGER image use policy .
Cataloging Keywords:
| Name | Value | Additional Values |
|---|---|---|
| Target | Mercury | |
| System | ||
| Target Type | Planet | |
| Mission | MESSENGER | |
| Instrument Host | MESSENGER | |
| Host Type | Orbiter | |
| Instrument | Mercury Dual Imaging System (MDIS) | |
| Detector | Wide Angle Camera (WAC) | |
| Extra Keywords | Crater, Grayscale, Map, Radio, Volcano | |
| Acquisition Date | ||
| Release Date | 2011-12-08 | |
| Date in Caption | 2011-11-08 | |
| Image Credit | NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington | |
| Source | photojournal.jpl.nasa.gov/catalog/PIA15201 | |
| Identifier | PIA15201 | |
