(91607) Delaboudiniere Main-belt Asteroid
Discovered on 5 October 1999 by R. A. Tucker at Goodricke-Pigott.
Jean-Pierre Delaboudinière (b. 1940), French astronomer, is a pioneer of the exploration of the solar UV resonance spectroscopy of Helium, and the Principal Investigator of the solar EUV imaging spectroscopy experiments on the CNES D2B and the ESA/NASA Solar and Heliospheric Observatory missions.Naming citation (WGSBN Bull. 2, #8, 8), IAU / Minor Planet Center, via NASA/JPL
Where Delaboudiniere is today
Seen from above the solar system on 2026-10-14: Delaboudiniere is 3.03 au from the Sun and 3.62 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 91607 |
| Provisional designation | 1999 TP20 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.13 |
| Orbital period | 5.11 years |
| Semi-major axis | 2.97 au |
| Perihelion – aphelion | 2.62 – 3.31 au |
| Eccentricity | 0.116 |
| Inclination | 2.48° |
| Closest distance between its orbit and Earth's (MOID) | 1.63 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Pierre
- (2190) Coubertin
- (5439) Couturier
- (5442) Drossart
- (5523) Luminet
- (8190) Bouguer
- (10139) Ronsard
- (11401) Pierralba
- (11946) Bayle
- (12007) Fermat
- (12042) Laques
- (12324) Van Rompaey
- (12580) Antonini
All asteroids named after someone called Pierre
Also discovered on 5 October 1999
- (21811) Burroughs
- (22952) Hommasachi
- (40763) Zloch
- (40775) Kalafina
- (40795) Akiratsuchiyama
- (102234) Olivebyrne