(6775) Giorgini Main-belt Asteroid

Discovered on 5 April 1989 by E. F. Helin at Palomar.

Named in honor of Jon D. Giorgini, who has contributed significantly to radar astrometry of minor planets through the development of an On-Site Orbit Determination software system. This allows radar astrometric measurements to be used immediately to improve a target's orbit, and hence yields ephemerides for pointing, time delay and doppler frequency. Since the system became operational at Goldstone in 1993, there has been an order-of-magnitude improvement in the efficiency with which radar observations can progress. In particular, Giorgini's software was key to the success of the radar imaging of (1620) Geographos in Aug. 1994 and (6489) Golevka in June 1995. Citation prepared by D. K. Yeomans and S. J. Ostro.Naming citation (MPC26933), IAU / Minor Planet Center, via NASA/JPL

Where Giorgini is today

Seen from above the solar system on 2026-10-14: Giorgini is 3.09 au from the Sun and 2.73 au from Earth. Computed from JPL's orbital elements.

Facts

Number	6775
Provisional designation	1989 GJ
Orbit class	Main-belt Asteroid
Diameter	5.91 km (#9,076 largest of 17,440 named asteroids with a measured size)
Albedo	0.320
Absolute magnitude (H)	13.23
Orbital period	4.38 years
Semi-major axis	2.68 au
Perihelion – aphelion	2.20 – 3.15 au
Eccentricity	0.177
Inclination	14.1°
Closest distance between its orbit and Earth's (MOID)	1.20 au

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

Also named after someone called Jon

All asteroids named after someone called Jon

Also discovered on 5 April 1989

More named asteroids discovered by E. F. Helin

All 267

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