(53256) Sinitiere Main-belt Asteroid
Discovered on 16 March 1999 by W. R. Cooney Jr. at Baton Rouge.
Robert Sinitiere (b. 1950) is an amateur astronomer and pharmacist. His lifelong interest in astronomy began at age eight, with the gift of a 2.5-inch reflector. He served as Treasurer of the Baton Rouge Astronomical Society for over thirty years.Naming citation (MPC batch dated 2013-07-22), IAU / Minor Planet Center, via NASA/JPL
Where Sinitiere is today
Seen from above the solar system on 2026-10-14: Sinitiere is 3.03 au from the Sun and 2.77 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 53256 |
| Provisional designation | 1999 FD |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.57 |
| Orbital period | 4.12 years |
| Semi-major axis | 2.57 au |
| Perihelion – aphelion | 2.08 – 3.05 au |
| Eccentricity | 0.189 |
| Inclination | 5.57° |
| Closest distance between its orbit and Earth's (MOID) | 1.08 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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