1282 Utopia

Utopia

Discovery
Discovered by	C. Jackson
Discovery site	Johannesburg (UO)
Discovery date	17 August 1933
Designations
MPC designation	1282
Alternative names	1933 QM1
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	82.63 yr (30182 days)
Aphelion	3.5058 AU (524.46 Gm)
Perihelion	2.7291 AU (408.27 Gm)
Semi-major axis	3.1175 AU (466.37 Gm)
Eccentricity	0.12457
Orbital period	5.50 yr (2010.5 d)
Mean anomaly	312.139°
Mean motion	0° 10^m 44.612^s / day
Inclination	18.0416°
Longitude of ascending node	324.324°
Argument of perihelion	79.33260°
Earth MOID	1.8042 AU (269.90 Gm)
Jupiter MOID	2.00678 AU (300.210 Gm)
Jupiter Tisserand parameter	3.130
Physical characteristics
Mean radius	26.535±1.85 km
Rotation period	13.61 h,[2] 13.623 h (0.5676 d)[1]
Geometric albedo	0.0627±0.010
Absolute magnitude (H)	10.2

1282 Utopia is a main-belt asteroid discovered on August 17, 1933, by South African astronomer Cyril V. Jackson at Johannesburg (UO). It was assigned the preliminary designation 1933 QM1.

Photometric observations at the Palmer Divide Observatory in Colorado Springs, Colorado, from 1999–2006 were used to build a light curve for this object. The asteroid displayed a rotation period of 13.61 ± 0.01 hours and a brightness variation of 0.28 ± 0.01 in magnitude.^[2]

References

1. "1282 Utopia (1933 QM1)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 28 April 2016.
2. Warner, Brian D. (January 2011), "Upon Further Review: IV. An Examination of Previous Lightcurve Analysis from the Palmer Divide Observatory", The Minor Planet Bulletin 38 (1), pp. 52–54, Bibcode:2011MPBu...38...52W.

External links

• 1282 Utopia at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters