Caption: Topography and gravity maps of Mars. Animated rotating Mars globes showing surface elevation (left) and free-air gravity variation (right). The elevation map was created using data from the Mars Global Surveyor spacecraft's Mars Orbiter Laser Altimeter (MOLA) and is colour-coded with lowlands in blue and highlands in red and white. Irregularities in the surface and sub-surface of Mars produce variations in the gravitational field, which affect the velocity and altitude of orbiting spacecraft. The free-air gravity map was created by studying small variations in the orbits of Mars Global Surveyor, Mars Odyssey, and Mars Reconnaissance Orbiter spacecraft.

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Keywords: 10 seconds or greater, altitude, animated, animation, anomalies, anomaly, areology, bar, black background, color, colour, coloured, comparison, craters, eastern, elevation, false, false-color, false-colour, feature, field, free air, free-air, from space, geographical, geography, geological, geology, global, globe, gmm 3, goddard mars model, gravitational, gravity, gravity map, hemisphere, impact crater, key, map, mapping, mars, mars global surveyor, mars observation, mars odyssey, mars orbiter camera, mars orbiter laser altimeter, mars reconnaissance orbiter, martian, mgs, mola, mro, no-one, nobody, ody, planetary science, rotating, rotation, scale, solar system, surface, topographic, topography, valles marineris, variation, western

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Topography and gravity maps of Mars

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Duration: 00:00:19.28

Frame size: 1920x1080

Frame rate: 30

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Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 503.8M


Capture format: QuickTime Animation

Codec: H.264

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