PIA01385: Pictures of Tethys' Large Crater
 Target Name:  Tethys
 Is a satellite of:  Saturn
 Mission:  Voyager
 Spacecraft:  Voyager 2
 Instrument:  VG ISS - Narrow Angle
 Product Size:  900 x 2100 pixels (w x h)
 Produced By:  JPL
 Producer ID:  P23941
 Addition Date:  1999-01-06
 Primary Data Set:  Voyager EDRs
 Full-Res TIFF:  PIA01385.tif (398.1 kB)
 Full-Res JPEG:  PIA01385.jpg (121.7 kB)

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Original Caption Released with Image:

This series of Voyager 2 pictures of Tethys shows its distinctive large crater, 400 kilometers (250 miles) in diameter, as it rotates toward the termination and limb of this satellite of Saturn. These images were obtained at four-hour intervals beginning late Aug. 24 and ending early the next day; the distances were 1.1 million km. (670,000 mi.), 826,000 km. (510,000 mi.) and 680,000 km. (420,000 mi.), respectively. The crater, the remnant of a large impact, has a central peak and several concentric rings. Some grooves radiating from the center may be formed of material thrown from the crater during the impact. The bottom frame, with the crater in profile, reveals that its floor has risen back to the spherical shape of the satellite, unlike the large crater seen on Tethys sister moon Mimas. The Voyager project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.

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