979 Ilsewa

979 Ilsewa
Discovery
Discovered by	K. Reinmuth
Discovery site	Heidelberg
Discovery date	29 June 1922
Designations
Alternative names	1922 MC
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	93.80 yr (34260 days)
Aphelion	3.5911 AU (537.22 Gm)
Perihelion	2.7268 AU (407.92 Gm)
Semi-major axis	3.1590 AU (472.58 Gm)
Eccentricity	0.13679
Orbital period	5.61 yr (2050.8 d)
Mean anomaly	237.947°
Mean motion	0° 10^m 31.944^s / day
Inclination	10.107°
Longitude of ascending node	230.627°
Argument of perihelion	115.022°
Earth MOID	1.7393 AU (260.20 Gm)
Jupiter MOID	1.96163 AU (293.456 Gm)
Jupiter Tisserand parameter	3.167
Physical characteristics
Mean radius	7001184100000000000♠18.41±1.25 km
Rotation period	42.61 h (1.775 d)
Geometric albedo	6999156700000000000♠0.1567±0.024
Absolute magnitude (H)	9.7

979 Ilsewa is a minor planet orbiting the Sun.

References

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978 Aidamina 979 Ilsewa 980 Anacostia

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