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High-phase Phobos and Deimos mutual event from Mars Express

High-phase Phobos and Deimos mutual event from Mars Express

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

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.

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)

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

Phobos and Deimos mutual event from Mars Express (raw)
Geometry of the Mars Express Phobos and Deimos mutual event

FU Berlin

Geometry of the Mars Express Phobos and Deimos mutual event
On November 5, 2009 at 08:14 UTC, the moons of Mars happened to be aligned just right as Mars Express crossed Mars' equator on its polar orbit for the orbiter to capture images of Phobos and Deimos together in the sky.

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. For uses not allowed by that license, contact us to request publication permission from the copyright holder: Emily Lakdawalla

Original image data dated on or about June 7, 2012

Explore related images: BMSIL, pretty pictures, data art (was amateur image processing), Mars Express, full-globe view, many worlds, Phobos, Deimos, animation

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