498 Tokio

Tokio
Discovery
Discovered by	Auguste Charlois
Discovery site	Nice
Discovery date	2 December 1902
Designations
MPC designation	498
Alternative names	1902 KU
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	112.09 yr (40942 d)
Aphelion	3.2459283 AU (485.58396 Gm)
Perihelion	2.0591298 AU (308.04143 Gm)
Semi-major axis	2.6525291 AU (396.81271 Gm)
Eccentricity	0.2237107
Orbital period	4.32 yr (1577.9 d)
Mean anomaly	178.62454°
Mean motion	0° 13^m 41.327^s / day
Inclination	9.493271°
Longitude of ascending node	97.404216°
Argument of perihelion	241.19753°
Earth MOID	1.06836 AU (159.824 Gm)
Jupiter MOID	2.1789 AU (325.96 Gm)
Jupiter Tisserand parameter	3.334
Physical characteristics
Mean radius	7001409150000000000♠40.915±1.15 km
Rotation period	41.85 h (1.744 d)
Sidereal rotation period	7005150660000000000♠41.85 h
Geometric albedo	6998694000000000000♠0.0694±0.004
Absolute magnitude (H)	8.95

498 Tokio (1902 KU) is a main-belt asteroid discovered on December 2, 1902 by Auguste Charlois at the Nice Observatory.

References

Minor planets navigator

497 Iva 498 Tokio 499 Venusia

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