(31190) Toussaint Main-belt Asteroid
Discovered on 27 December 1997 by R. A. Tucker at Goodricke-Pigott.
Roberta Marie Toussaint (b. 1954) is a U.S. experimental physicist noted for developing biomagnetic devices and techniques and also for vital improvements to calibration of vast amounts of data from the worldwide GONG network of helioseismic telescopes and a high-precision spectrometer.Naming citation (20030806/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Toussaint is today
Seen from above the solar system on 2026-10-14: Toussaint is 2.33 au from the Sun and 1.86 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31190 |
| Provisional designation | 1997 YB12 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.50 km (#11,632 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.263 |
| Rotation period | 12.4 hours |
| Absolute magnitude (H) | 14.02 |
| Orbital period | 4.18 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.31 – 2.89 au |
| Eccentricity | 0.112 |
| Inclination | 14.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.34 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Roberta
- (10172) Humphreys
- (13693) Bondar
- (21391) Rotanner
- (25374) Harbrucker
- (26499) Robertazabotti
- (155997) Robertaciani
- (471301) Robertajmolson
All asteroids named after someone called Roberta
Also discovered on 27 December 1997
- (8432) Tamakasuga
- (10234) Sixtygarden
- (15938) Bohnenblust
- (16861) Lipovetsky
- (31189) Tricomi
- (33103) Pintar
- (52649) Chrismith
- (65885) Lubenow