(31465) Piyasiri Main-belt Asteroid
Discovered on 10 February 1999 by LINEAR at Socorro.
Namal Udara Piyasiri (b. 1996) was awarded second place in the 2014 Intel International Science and Engineering Fair for his electrical and mechanical engineering project. He attends the Tabuththegama Central College, Thambuththegama, Sri Lanka.Naming citation (MPC batch dated 2015-07-02), IAU / Minor Planet Center, via NASA/JPL
Where Piyasiri is today
Seen from above the solar system on 2026-10-14: Piyasiri is 2.42 au from the Sun and 2.65 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31465 |
| Provisional designation | 1999 CS26 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.66 km (#8,043 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0540 |
| Absolute magnitude (H) | 14.91 |
| Orbital period | 3.77 years |
| Semi-major axis | 2.42 au |
| Perihelion – aphelion | 2.14 – 2.70 au |
| Eccentricity | 0.116 |
| Inclination | 3.46° |
| Closest distance between its orbit and Earth's (MOID) | 1.14 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 10 February 1999
- (10939) Maheshwari
- (10942) Natashamaniar
- (11197) Beranek
- (11407) Madsubramanian
- (15083) Tianhuili
- (15088) Licitra
- (15492) Nyberg
- (16012) Jamierubin
- (16013) Schmidgall
- (16014) Sinha
- (16015) Snell
- (16016) Boylan