(33491) Tonyroman Main-belt Asteroid

Discovered on 11 April 1999 by LONEOS at Anderson Mesa.

Anthony (Tony) Roman (b. 1969) is an American branch manager at the Space Telescope Science Institute. He provides critical support for Solar System observations with HST and JWST. His work led to implementation of faster tracking rates for moving targets with JWST.Naming citation (WGSBN Bull. 3, #9, 30), IAU / Minor Planet Center, via NASA/JPL

Where Tonyroman is today

MercuryVenusEarthEarthMarsMarsTonyromanTonyroman

Seen from above the solar system on 2026-10-14: Tonyroman is 2.49 au from the Sun and 1.63 au from Earth. Computed from JPL's orbital elements.

Facts

Number33491
Provisional designation1999 GM9
Orbit classMain-belt Asteroid
Diameter3.11 km (#14,929 largest of 17,440 named asteroids with a measured size)
Albedo0.289
Absolute magnitude (H)14.67
Orbital period3.71 years
Semi-major axis2.40 au
Perihelion – aphelion2.22 – 2.57 au
Eccentricity0.0714
Inclination5.93°
Closest distance between its orbit and Earth's (MOID)1.22 au

Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.

Also discovered on 11 April 1999

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