(85627) 1998 HP151

(85627) 1998 HP₁₅₁

Discovery
Discovered by	Mauna Kea Observatory[1]
Discovery date	28 April 1998
Designations
Alternative names	none
Minor planet category	TNO (cubewano)[2][3]
Orbital characteristics[4]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc	3302 days (9.04 yr)
Aphelion	47.92187 AU (7.169010 Tm)
Perihelion	40.25486 AU (6.022041 Tm)
Semi-major axis	44.08836 AU (6.595525 Tm)
Eccentricity	0.086951
Orbital period	292.75 yr (106926 d)
Average orbital speed	4.47 km/s
Mean anomaly	315.815°
Mean motion	0° 0^m 12.121^s / day
Inclination	1.51240°
Longitude of ascending node	55.9363°
Argument of perihelion	249.275°
Earth MOID	39.2382 AU (5.86995 Tm)
Jupiter MOID	35.1334 AU (5.25588 Tm)
Jupiter Tisserand parameter	5.916
Physical characteristics
Dimensions	146 km[5]
Mass	3.0×10^19? kg
Mean density	2.0? g/cm³
Equatorial surface gravity	0.0858? m/s²
Equatorial escape velocity	0.1623? km/s
Rotation period	? d
Geometric albedo	0.10?
Temperature	~42 K
Spectral type	?
Absolute magnitude (H)	7.4

(85627) 1998 HP₁₅₁, also written as (85627) 1998 HP151 is a cubewano. It has a perihelion (closest approach to the Sun) at 40.297 AU and an aphelion (farthest approach from the Sun) of 48.306 AU. It is about 146 km in diameter. It was discovered on April 28, 1998, at the Mauna Kea Observatory, Hawaii.

References

1. List Of Transneptunian Objects
2. "MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT)". IAU Minor Planet Center. 2009-09-04. Retrieved 2009-10-04.
3. Marc W. Buie. "Orbit Fit and Astrometric record for 85627". SwRI (Space Science Department). Retrieved 2009-10-04. 2007-05-13 using 37 observations
4. "85627 (1998 HP151)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 8 April 2016.
5. List of known trans-Neptunian objects

External links

• (85627) 1998 HP151 at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters