5641 McCleese

McCleese

Discovery
Discovered by	E. Helin
Discovery site	Palomar
Discovery date	27 February 1990
Designations
MPC designation	5641
Alternative names	1990 DJ
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	15561 days (42.60 yr)
Aphelion	2.0494157 AU (306.58822 Gm)
Perihelion	1.5897241 AU (237.81934 Gm)
Semi-major axis	1.819570 AU (272.2038 Gm)
Eccentricity	0.1263188
Orbital period	2.45 yr (896.50 d)
Mean anomaly	144.0332°
Mean motion	0° 24^m 5.618^s / day
Inclination	22.20359°
Longitude of ascending node	151.32279°
Argument of perihelion	57.05660°
Earth MOID	0.654089 AU (97.8503 Gm)
Jupiter MOID	2.99376 AU (447.860 Gm)
Jupiter Tisserand parameter	3.946
Physical characteristics
Dimensions	6 km (IRAS)[1]
Mean radius	2.84 ± 0.25 km
Rotation period	418 h (17.4 d)
Sidereal rotation period	418 h[1]
Geometric albedo	0.4552 ± 0.088[1]
Spectral type	A[1]
Absolute magnitude (H)	14.0[1]

5641 McCleese (1990 DJ) is a relatively large 6 km Mars-crossing asteroid discovered on February 27, 1990 by E. Helin at Palomar.^[1] It has a notably high albedo of 0.46 and a 418-hour rotation period.^[1] It is a rare A-type asteroid.^[2]

References

1. "JPL Small-Body Database Browser: 5641 McCleese". Jet Propulsion Laboratory. Retrieved 13 April 2016.
2. "JPL Small-Body Database Search Engine: spec. type = A (SMASSII)". JPL Solar System Dynamics. Retrieved 2015-06-14.

External links

• 5641 McCleese at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters