(21888) Durech Main-belt Asteroid
Discovered on 29 October 1999 by LONEOS at Anderson Mesa.
Josef Ďurech (b. 1974), of the Astronomical Institute, Charles University, in Prague, has provided lightcurve inversion models for dozens of minor planets (including detection of the YORP effect), written public-domain software for lightcurve inversion and contributed to amateur-professional collaboration.Naming citation (20080718/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Durech is today
Seen from above the solar system on 2026-10-14: Durech is 3.00 au from the Sun and 2.20 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21888 |
| Provisional designation | 1999 UL44 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.13 |
| Orbital period | 5.35 years |
| Semi-major axis | 3.06 au |
| Perihelion – aphelion | 2.97 – 3.15 au |
| Eccentricity | 0.0293 |
| Inclination | 9.16° |
| Closest distance between its orbit and Earth's (MOID) | 1.97 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 29 October 1999
- (13410) Arhale
- (13412) Guerrieri
- (13413) Bobpeterson
- (13414) Grantham
- (13415) Stevenbland
- (14674) INAOE
- (15513) Emmermann
- (21873) Jindrichuvhradec
- (22961) Rosegarcia
- (24090) Grindavik
- (24093) Tomoyamaguchi
- (31824) Elatus