(169299) Sirko Main-belt Asteroid
Discovered on 21 September 2001 by Sloan Digital Sky Survey at Apache Point.
Edwin Sirko (b. 1978) is a former American astronomer and a contributor to the Sloan Digital Sky Survey, known for his work on cosmological simulations. He was lead programmer on NASA's official computer game, Moonbase Alpha.Naming citation (20130127/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Sirko is today
Seen from above the solar system on 2026-10-14: Sirko is 3.33 au from the Sun and 4.13 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 169299 |
| Provisional designation | 2001 SK353 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.62 km (#9,548 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0510 |
| Absolute magnitude (H) | 15.21 |
| Orbital period | 5.44 years |
| Semi-major axis | 3.09 au |
| Perihelion – aphelion | 2.85 – 3.34 au |
| Eccentricity | 0.0794 |
| Inclination | 11.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.87 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Edwin
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- (26485) Edwinpost
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All asteroids named after someone called Edwin