R. S. Harrlngton, D. Pascu and P. K. Seidelmann, U.S. Naval Observatory, write: "Our continuing investigation of the orbit of the objects associated with the Saturn satellite designations 1980 S 13, 1980 S 24 and 1980 S 25 (cf. IAUC 3534, 3545, 3549) leads us to suggest that there may be an object or condensation of material at both the L4 and L5 libration points of Saturn III (Tethys). The orbit with a period of 1.84 days does not fit the data well and is unstable. The 1.99-day-period orbit does not fit the May data, and we have negative observations in Mar. when the object should have been observable. Additional observations of this object, or these objects, are required to resolve the situation of the orbits and the question of solid object versus condensation of material."
International Astronomical Union Circular
- Pub Date:
- March 1981