Epimetheus (113 kilometers, 70 miles across) is one of Saturn's “co-orbital moons” because it shares nearly the same orbit as Janus (179 kilometers, 111 miles across) at a distance of approximately 151,000 kilometers (94,000 miles) from Saturn.
The image was taken in visible light with the narrow angle camera on February 18, 2005, from a distance of approximately 1.1 million kilometers (684,000 miles) from Epimetheus and at a Sun-Epimetheus-spacecraft, or phase, angle of 96 degrees. Resolution in the original image was 6 kilometers (4 miles) per pixel. The image has been contrast-enhanced and magnified by a factor of four to aid visibility.
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.