(129973) Michaeldaly Main-belt Asteroid
Discovered on 30 October 1999 by CSS at Catalina.
Michael Daly (b. 1965) is a professor of planetary science at York University and is the lead scientist for the OSIRIS-REx Laser Altimeter. Prior to this, he was the lead engineer for the development of Phoenix MET, Canada's first instruments to operate on the surface of Mars.Naming citation (MPC batch dated 2016-08-18), IAU / Minor Planet Center, via NASA/JPL
Where Michaeldaly is today
Seen from above the solar system on 2026-10-14: Michaeldaly is 2.35 au from the Sun and 2.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 129973 |
| Provisional designation | 1999 UW25 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.65 |
| Orbital period | 4.37 years |
| Semi-major axis | 2.67 au |
| Perihelion – aphelion | 2.19 – 3.16 au |
| Eccentricity | 0.181 |
| Inclination | 12.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.20 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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