(11267) Donaldkessler Main-belt Asteroid

Discovered on 24 October 1981 by S. J. Bus at Palomar.

Donald J. Kessler (b. 1940) is the founder of the modern field of orbital debris, having worked as head of the orbital debris office at NASA from the time of its founding until 1996.Naming citation (MPC batch dated 2017-03-12), IAU / Minor Planet Center, via NASA/JPL

Where Donaldkessler is today

MercuryVenusEarthEarthMarsMarsDonaldkesslerDonaldkessler

Seen from above the solar system on 2026-10-14: Donaldkessler is 2.72 au from the Sun and 3.37 au from Earth. Computed from JPL's orbital elements.

Facts

Number11267
Provisional designation1981 UE28
Orbit classMain-belt Asteroid
Diameter11.1 km (#4,515 largest of 17,440 named asteroids with a measured size)
Albedo0.0480
Absolute magnitude (H)13.99
Orbital period4.64 years
Semi-major axis2.78 au
Perihelion – aphelion2.56 – 3.00 au
Eccentricity0.0791
Inclination3.91°
Closest distance between its orbit and Earth's (MOID)1.55 au

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

Also named after someone called Donald

Also discovered on 24 October 1981

More named asteroids discovered by S. J. Bus