498 Tokio
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery site | Nice |
| Discovery date | 2 December 1902 |
| Designations | |
| MPC designation | 498 |
| 1902 KU | |
| Orbital characteristics | |
| 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) |
| 2.6525291 AU (396.81271 Gm) | |
| Eccentricity | 0.2237107 |
| 4.32 yr (1577.9 d) | |
| 178.62454° | |
| 0° 13m 41.327s / day | |
| Inclination | 9.493271° |
| 97.404216° | |
| 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
|
40.915±1.15 km |
| 41.85 h (1.744 d) | |
|
Sidereal rotation period
|
41.85 h |
| 0.0694±0.004 | |
| 8.95 | |
498 Tokio (1902 KU) is a main-belt asteroid discovered on December 2, 1902 by Auguste Charlois at the Nice Observatory.
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