(24978) 1998 HJ151

(24978) 1998 HJ₁₅₁, also written as (24978) 1998 HJ151, is a cubewano. It has a perihelion (closest approach to the Sun) of 41.339 AU and an aphelion (farthest approach to the Sun) of 45.889 AU. It has a diameter of about 139 km. It was discovered on 28 April 1998, by Jane X. Luu, Chadwick A. Trujillo, David J. Tholen and David C. Jewitt.

(24978) 1998 HJ₁₅₁

Discovery
Discovered by	Jane X. Luu, Chadwick A. Trujillo, David J. Tholen, and David C. Jewitt
Discovery date	28 April 1998
Designations
Alternative designations	none
Minor planet category	TNO (cubewano)[1][2]
Orbital characteristics[3]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc	3301 days (9.04 yr)
Aphelion	45.69279420 AU (6.835544719 Tm)
Perihelion	41.17981243 AU (6.160412255 Tm)
Semi-major axis	43.43630331 AU (6.497978486 Tm)
Eccentricity	0.051949
Orbital period (sidereal)	286.28 yr (104563 d)
Mean anomaly	68.772637°
Mean motion	0° 0m 12.394s / day
Inclination	2.3891912°
Longitude of ascending node	50.396457°
Argument of perihelion	128.58135°
Physical characteristics
Mean diameter	139 km[4]
Absolute magnitude (H)	7.5