(130126) Stillmanchase Main-belt Asteroid
Discovered on 4 December 1999 by CSS at Catalina.
Stillman Chase (b. 1932) is the Systems Engineer for the OTES instrument on OSIRIS-REx Asteroid Sample Return Mission. He was an instrument Co-Investigator on Mariners 2, 6, 7, 9 and 10, Vikings 1 & 2, Pioneers 10 & 11 and Mars Global Surveyor. Chase was an instrument Principal Investigator on Mariner 10.Naming citation (MPC batch dated 2016-11-14), IAU / Minor Planet Center, via NASA/JPL
Where Stillmanchase is today
Seen from above the solar system on 2026-10-14: Stillmanchase is 2.04 au from the Sun and 1.22 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 130126 |
| Provisional designation | 1999 XW106 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.65 |
| Orbital period | 4.48 years |
| Semi-major axis | 2.72 au |
| Perihelion – aphelion | 2.03 – 3.41 au |
| Eccentricity | 0.253 |
| Inclination | 10.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.04 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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