TethysTethys| MEAN RADIUS | 523 km |
| MASS | 0.000126 (Earth=1) |
| DENSITY | 1.21 (gm/cm) |
| GRAVITY | 0.018 (Earth=1) |
| ORBIT PERIOD | 1.888 (Earth days) |
| ROTATION PERIOD | 1.888 (Earth days) |
| SEMIMAJOR AXIS OF ORBIT | 294,670 km |
| ECCENTRICITY OF ORBIT | (0) |
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