(121756) Sotomejias Main-belt Asteroid

Discovered on 7 December 1999 by CSS at Catalina.

Vanessa Soto-Mejias (b. 1982) contributed to the NASA OSIRIS-REx Asteroid Sample Return Mission as Resource Analyst.Naming citation (MPC batch dated 2016-08-18), IAU / Minor Planet Center, via NASA/JPL

Where Sotomejias is today

MercuryVenusEarthEarthMarsMarsSotomejiasSotomejias

Seen from above the solar system on 2026-10-14: Sotomejias is 2.92 au from the Sun and 3.89 au from Earth. Computed from JPL's orbital elements.

Facts

Number121756
Provisional designation1999 XA257
Orbit classMain-belt Asteroid
Diameter3.07 km (#15,053 largest of 17,440 named asteroids with a measured size)
Albedo0.226
Absolute magnitude (H)15.25
Orbital period5.10 years
Semi-major axis2.96 au
Perihelion – aphelion2.47 – 3.45 au
Eccentricity0.165
Inclination8.31°
Closest distance between its orbit and Earth's (MOID)1.51 au

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

Also named after someone called Vanessa

Also discovered on 7 December 1999

More named asteroids discovered by CSS