(15789) 1993 SC

(15789) 1993 SC

Discovery
Discovered by	Iwan P. Williams, Alan Fitzsimmons, and Donal O'Ceallaigh
Discovery date	17 September 1993
Designations
MPC designation	(15789) 1993 SC
Alternative names	none
Minor planet category	Plutino[1]
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc	5839 days (15.99 yr)
Aphelion	46.639 AU (6.9771 Tm)
Perihelion	32.162 AU (4.8114 Tm)
Semi-major axis	39.400 AU (5.8942 Tm)
Eccentricity	0.18372
Orbital period	247.32 yr (90333.4 d)
Mean anomaly	66.186°
Mean motion	0° 0^m 14.347^s / day
Inclination	5.1667°
Longitude of ascending node	354.75°
Argument of perihelion	316.20°
Earth MOID	31.1475 AU (4.65960 Tm)
Jupiter MOID	27.0752 AU (4.05039 Tm)
Jupiter Tisserand parameter	5.520
Physical characteristics
Dimensions	328 km[2] 363 km[3]
Mean radius	164 ± 30 km
Geometric albedo	0.022 ± 0.010[2]
Absolute magnitude (H)	7.0

(15789) 1993 SC is a trans-Neptunian object of the plutino class. The discovery was made in 1993 at the La Palma Observatory with the Isaac Newton Telescope. It was the second plutino to receive an MPC number.^[1]

References

1. "MPEC 2010-S44 :Distant Minor Planets (2010 OCT. 11.0 TT)". IAU Minor Planet Center. 2010-09-25. Retrieved 2014-11-16.
2. "15789 (1993 SC)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 8 April 2016.
3. List of known trans-Neptunian objects at Johnston's Archive

External links

• MPC: List of TNOs
• Grundy, W. M.; Noll, K. S.; Stephens, D. C. "Diverse albedos of small trans-neptunian objects." Icarus, Volume 176, Issue 1, p. 184-191 (07/2005) Abstract
• (15789) 1993 SC at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters