S/2007 S 3 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on 1 May 2007 from observations taken between 18 January and 19 April 2007.
| Discovery[1] | |
|---|---|
| Discovered by | Scott S. Sheppard et al. |
| Discovery site | Mauna Kea Obs. |
| Discovery date | 16 January 2007 |
| Orbital characteristics[2] | |
| Epoch 9 August 2022 (JD 2459800.5) | |
| Observation arc | 14.48 yr (5,287 days) |
| 0.1298753 AU (19,429,000 km) | |
| Eccentricity | 0.1428233 |
| –2.77 yr (–1011.10 d) | |
| 270.66716° | |
| 0° 21m 21.778s / day | |
| Inclination | 176.62877° (to ecliptic) |
| 127.32559° | |
| 18.70983° | |
| Satellite of | Saturn |
| Group | Norse group |
| Physical characteristics | |
| ≈5 km[3] | |
| Albedo | 0.04 (assumed)[3] |
| 24.9[3] | |
| 15.7[2] | |
S/2007 S 3 is about 5 kilometres in diameter, and orbits Saturn at an average distance of 19,429,000 kilometres in about 1,011 days, at an inclination of 176.6° to the ecliptic, in a retrograde direction and with an eccentricity of 0.143.[2][4]
This moon was considered lost[5] until its recovery was announced on 12 October 2022.[2]
References
edit- ^ Discovery Circumstances from JPL
- ^ a b c d "MPEC 2022-T125 : S/2007 S 3". Minor Planet Electronic Circular. Minor Planet Center. 12 October 2022. Retrieved 12 October 2022.
- ^ a b c S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line
- ^ Jacobson, R.A. (2007) SAT272 (2007-06-28). "Planetary Satellite Mean Orbital Parameters". JPL/NASA. Archived from the original on 2011-08-10. Retrieved 2008-01-20.
{{cite web}}: CS1 maint: numeric names: authors list (link) - ^ Jacobson, B.; Brozović, M.; Gladman, B.; Alexandersen, M.; Nicholson, P. D.; Veillet, C. (28 September 2012). "Irregular Satellites of the Outer Planets: Orbital Uncertainties and Astrometric Recoveries in 2009–2011". The Astronomical Journal. 144 (5): 132. Bibcode:2012AJ....144..132J. doi:10.1088/0004-6256/144/5/132. S2CID 123117568.
- Institute for Astronomy Saturn Satellite Data
- MPEC 2007-J09: S/2007 S 2, S/2007 S 3, 1 May 2007 (discovery and ephemeris)