(22802) Sigiriya Main-belt Asteroid
Discovered on 13 August 1999 by LONEOS at Anderson Mesa.
Sigiriya is a fifth-century rock fortress in central Sri Lanka. It is a UNESCO World Heritage Site renowned for its frescoes. The name was suggested by N. H. Samarasinha.Naming citation (20101128/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Sigiriya is today
Seen from above the solar system on 2026-10-14: Sigiriya is 1.85 au from the Sun and 2.05 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22802 |
| Provisional designation | 1999 PK6 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.53 km (#16,214 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.156 |
| Rotation period | 4.29 hours |
| Absolute magnitude (H) | 15.31 |
| Orbital period | 3.44 years |
| Semi-major axis | 2.28 au |
| Perihelion – aphelion | 1.83 – 2.72 au |
| Eccentricity | 0.196 |
| Inclination | 6.56° |
| Closest distance between its orbit and Earth's (MOID) | 0.820 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.