S/2007 S 3
Discovery [1]
Discovered byScott S. Sheppard et al.
Discovery siteMauna Kea Obs.
Discovery date16 January 2007
Orbital characteristics [2]
Epoch 9 August 2022 (JD 2459800.5)
Observation arc14.48 yr (5,287 days)
0.1298753 AU (19,429,000 km)
Eccentricity0.1428233
–2.77 yr (–1011.10 d)
270.66716°
0° 21m 21.778s / day
Inclination176.62877° (to ecliptic)
127.32559°
18.70983°
Satellite ofSaturn
GroupNorse group
Physical characteristics
Mean diameter
≈5 km[3]
Albedo0.04 (assumed)[3]
24.9[3]
15.7[2]

    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.

    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

    1. ↑ Discovery Circumstances from JPL
    2. 1 2 3 4 "MPEC 2022-T125 : S/2007 S 3". Minor Planet Electronic Circular. Minor Planet Center. 12 October 2022. Retrieved 12 October 2022.
    3. 1 2 3 S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line
    4. ↑ 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)
    5. ↑ 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.


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