21 lugl 1973 anni - Mars 4
Failed Mars orbiter attempt (successful as a flyby) (USSR)
Descrizione:
The microchip problem caused the failure of the Mars 4 orbiter to fire its orbit insertion rockets. It flew by Mars at a distance of 2,200 kilometers (1,370 miles), taking one set of images and collecting limited data. It continued to function after the flyby, returning data from solar orbit.
https://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1973-047A
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mars timeline
the videos are in the parts of Mars Exploration Rover Spirit...
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