SMART-1 video of Kepler crater
Science & Exploration

Kepler Crater as seen by SMART-1

30/06/2006 1411 views 1 likes
ESA / Science & Exploration / Space Science / SMART-1

This animation, made from images taken by the advanced Moon Imaging Experiment (AMIE) on board ESA’s SMART-1 spacecraft, shows Kepler crater on the Moon.

AMIE obtained this sequence on 13 January 2006 from a distance ranging between 1613 and 1702 kilometres from the surface, with a ground resolution between 146 and 154 metres per pixel.

The imaged area is centred at a latitude of 37.8º South and longitude 9.0º East. Kepler is a small young crater situated between Oceanus Procellarum and Mare Insularum. It has a diameter of 32 km and it is 2.6 kilometres deep.

Kepler displays a ray system that overlaps with rays from other craters and which extends over 300 kilometres. The outer wall shows a slightly polygonal shape. The interior walls of the crater are slumped and slightly terraced, and descend to an uneven floor and a minor central rise.

Anaglyph image of Kepler crater
Anaglyph image of Kepler crater

This particular sequence of images demonstrates the so called 'tracking mode' of the SMART-1 spacecraft, used to track a fixed target when flying over it. While flying over Kepler, the clear filter of the camera was always pointed to the same position.

To stay within the thermal constraints, the spacecraft had to change its roll during the images acquisition, thus the image is slightly rotated when passing from one frame to the next.

Thanks to the tracking mode it is possible to obtain information about the size and roughness properties of the soil. It also allows multiple stereo views of the target’s topography.

Kepler crater is named after Johannes Kepler (1571-1630), German astronomer known for his three laws of planetary motion.

For more information

Jean-Luc Josset, AMIE Principal Investigator
SPACE-X Space Exploration Institute
Email: jean-luc.josset @ space-x.ch

Bernard H. Foing, ESA SMART-1 Project Scientist
Email: bernard.foing @ esa.int

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