The Saturn moon photographed by Voyager 1 in 1980 and named after the mythological figure is Pandora. It is a small irregular satellite that orbits near Saturn’s outer A ring.
Voyager 1 images led to Pandora’s discovery in October 1980, although the moon was not immediately seen in the first examination of every image. It was later recognized in photographs taken during the spacecraft’s Saturn encounter. The International Astronomical Union named it Pandora, continuing the convention of giving Saturn’s moons mythological names.
Pandora is a shepherd satellite: its gravitational influence helps confine material near the edge of Saturn’s F ring. Prometheus, another small Saturnian moon, shepherds the ring from the other side. Their names and orbital relationship can cause confusion, but the moon in this question is Pandora.