(91205) 1998 US43

(91205) 1998 US₄₃

Discovery
Discovered by	Marc W. Buie
Discovery date	22 October 1998
Designations
MPC designation	(91205) 1998 US43
Minor planet category	plutino (TNO)
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 4
Observation arc	6314 days (17.29 yr)
Aphelion	44.399 AU (6.6420 Tm)
Perihelion	34.151 AU (5.1089 Tm)
Semi-major axis	39.275 AU (5.8755 Tm)
Eccentricity	0.13047
Orbital period	246.14 yr (89902.1 d)
Mean anomaly	59.224°
Mean motion	0° 0^m 14.416^s / day
Inclination	10.618°
Longitude of ascending node	223.90°
Argument of perihelion	141.41°
Earth MOID	33.1543 AU (4.95981 Tm)
Jupiter MOID	29.2455 AU (4.37506 Tm)
Physical characteristics
Dimensions	116 km
Absolute magnitude (H)	8.0

(91205) 1998 US₄₃, also written as a (91205) 1998 US43 is a plutino, so it has a 2:3 resonance with Neptune, similar to Pluto. It has a perihelion (closest approach to the Sun) at 34.002 AU and an aphelion (farthest approach from the Sun) at 44.220 AU . It is about 116 km in diameter, so it is unlikely to ever be classified as a dwarf planet due to its relatively small size. It was discovered on October 22, 1998, by Marc W. Buie.

References

1. "JPL Small-Body Database Browser: 91205 (1998 US43)". NASA/Jet Propulsion Laboratory. Retrieved 7 April 2016.

1. ^ http://cfa-www.harvard.edu/iau/lists/TNOs.html

2. ^ http://www.johnstonsarchive.net/astro/tnoslist.html

External links

• (91205) 1998 US43 at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters