Although both spacecraft took images of Tethys, the resolution of Voyager 1's images did not exceed 15 km, and only those obtained by Voyager 2 had a resolution as high as 2 km.
Aínda que ambas sonda obtiveron imaxes de Tetis, a resolución das imaxes da Voyager 1 non superaban os 15 km e só aquelas obtidas pola Voyager 2 tiveron unha resolución de 2 km.