Viking 1 (1975-1980)

Le site d'atterrissage de Viking 1 :

Deimos au-dessus d'Arabia Terra, vu par Viking Orbiter 1 le 2 janvier 1978 :


Mars' tiny moon Deimos in the skies over eastern Arabia Terra, imaged by Viking Orbiter 1 on January 2, 1978. This image was made possible by the spacecraft's elongated orbit, which took it up to 34,000 km from the surface, well above Deimos' orbital altitude of 23,500 km.