(129980) Catherinejohnson Main-belt Asteroid

Discovered on 28 October 1999 by CSS at Catalina.

Catherine Johnson (b. 1967) is a planetary geophysicist and a Co-Investigator for the OSIRIS-REx Asteroid Sample Return Mission and for the InSight mission to Mars. She was a Participating Scientist on the MESSENGER mission to Mercury and is a Fellow of the American Geophysical Union.Naming citation (MPC batch dated 2016-11-14), IAU / Minor Planet Center, via NASA/JPL

Where Catherinejohnson is today

MercuryVenusEarthEarthMarsMarsCatherinejohnsonCatherinejohnson

Seen from above the solar system on 2026-10-14: Catherinejohnson is 2.89 au from the Sun and 3.85 au from Earth. Computed from JPL's orbital elements.

Facts

Number129980
Provisional designation1999 UN42
Orbit classMain-belt Asteroid
Absolute magnitude (H)15.95
Orbital period3.59 years
Semi-major axis2.34 au
Perihelion – aphelion1.74 – 2.95 au
Eccentricity0.260
Inclination5.41°
Closest distance between its orbit and Earth's (MOID)0.737 au

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

Also named after someone called Catherine

Also discovered on 28 October 1999

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