Shows the elevation of the martian landscape.
red = hill, blue = valley
the big blue crater at 60°E, 45°S is probably an old impact crater from an asteroid and is 4 km deep!
The highest mountain on Mars is olympus mons at 20°N, 130°W with an altitude of 21 km above planet-wide average.
Source: NASA, Mars Orbiter Laser Altimeter
Also we have a whole Mars community here: !mars@discuss.tchncs.de
In case you want to know more about the planet, please feel free to ask :)
looks like center is off. how do they define zero?
I’m not sure. On Earth we have the geoid model which uses the ocean as a reference line. I’m not sure how they do it on mars but i assume it’s such that the average height is zero, in other words, if it’s positive on some locations, it needs to be negative at some other locations?
I read they used the orbit for reference. Maybe the gravitational center is off?