(3150) Tosa Outer Main-belt Asteroid

Discovered on 11 February 1983 by T. Seki at Geisei.

Where Tosa is today

MercuryVenusEarthEarthMarsMarsTosaTosa

Seen from above the solar system on 2026-10-14: Tosa is 3.49 au from the Sun and 2.68 au from Earth. Computed from JPL's orbital elements.

Facts

Number3150
Provisional designation1983 CB
Orbit classOuter Main-belt Asteroid
Diameter33.5 km (#1,209 largest of 17,440 named asteroids with a measured size)
Albedo0.0330
Absolute magnitude (H)11.26
Orbital period5.73 years
Semi-major axis3.20 au
Perihelion – aphelion2.83 – 3.57 au
Eccentricity0.116
Inclination22.1°
Closest distance between its orbit and Earth's (MOID)1.93 au

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

Also discovered on 11 February 1983

More named asteroids discovered by T. Seki