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Credit: NASA/JPL/Cornell

Transit of Deimos across the Sun as seen from Mars Exploration Rover Spirit on March 2005.

Original filename: http://marsrovers.nasa.gov/gallery/all/2/p/420/2P163656043ESFA818P2743R8M1.JPG^{[dead link]} [4] archive copy at the Wayback Machine

The timestamp built into the filename is 163656043 seconds since the J2000.0 epoch ([5]), or March 9 2005 15:59:38.816 UTC (the three-decimal-digit precision is of course not real).

• Spirit image gallery: Sol 420 archive copy at the Wayback Machine (small images of the March 9 2005 transit are near the middle of the page).