Mimas briefly slipped in front of Tethys while Cassini looked on and captured the event in this series of images.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Feb. 11, 2006, at a distance of approximately 3.7 million kilometers (2.3 million miles) from Mimas and 4.1 million kilometers (2.5 million miles) per pixel from Tethys. Resolution in the original image was 22 kilometers (14 miles) per pixel on Mimas (397 kilometers, 247 miles across) and 25 kilometers (16 miles) per pixel on Tethys (1,062 kilometers, 660 miles across). The images have been magnified by a factor of two.
The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Cassini-Huygens mission for NASA's Science Mission Directorate, Washington, D.C. The imaging team consists of scientists from the US, England, France, and Germany. The imaging operations center and team lead (Dr. C. Porco) are based at the Space Science Institute in Boulder, Colo.