High-phase Phobos and Deimos mutual event from Mars Express

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High-phase Phobos and Deimos mutual event from Mars Express

This 131-frame animation documents a "mutual event" of Phobos and Deimos -- the two appeared to pass by each other as the Mars Express orbiter moved along its own path.

ESA/DLR/FU Berlin (G. Neukum) / Emily Lakdawalla

The original images have been aligned to hold the vertical position of Deimos constant. In the raw image data, the moons bob up and down as Mars Express adjusts its pointing:

Phobos and Deimos mutual event from Mars Express (raw)

Copyright holder: Emily Lakdawalla

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
Contact us to request publication permission from the copyright holder. Original image data dated on or about June 7, 2012