(19691) Iwate Main-belt Asteroid
Discovered on 5 September 1999 by LONEOS at Anderson Mesa.
Iwate, the second largest prefecture in Japan, is located in north Honshu. Its coast was heavily damaged during the March 2011 tsunami. Iwate has one of the oldest astronomical institutions in Japan (Mizusawa Observatory), which was established for Earth rotation measurements.Naming citation (20120506/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Iwate is today
Seen from above the solar system on 2026-10-14: Iwate is 2.65 au from the Sun and 1.83 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19691 |
| Provisional designation | 1999 RN214 |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.6 km (#3,868 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0410 |
| Rotation period | 37.6 hours |
| Absolute magnitude (H) | 13.44 |
| Orbital period | 4.55 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.59 – 2.90 au |
| Eccentricity | 0.0567 |
| Inclination | 5.52° |
| Closest distance between its orbit and Earth's (MOID) | 1.60 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 5 September 1999
- (12576) Oresme
- (12579) Ceva
- (16064) Davidharvey
- (20606) Widemann
- (21665) Frege
- (21678) Lindner
- (21775) Tsiganis
- (21776) Kryszczynska
- (38423) Jeokjungchogye
- (42910) Samanthalawler
- (59804) Dickjoyce
- (59828) Ossikar