(90138) Diehl Main-belt Asteroid
Discovered on 25 December 2002 by B. L. Stevens at Desert Moon.
Jacqueline (Jackie) Diehl (b. 1963), the first chair of the White Sands Star Party, has promoted astronomy through the Alamogordo Astronomy Club. She managed Space Camp at the New Mexico Museum of Space History and has been education and public outreach coordinator at the National Solar Observatory.Naming citation (20060219/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Diehl is today
Seen from above the solar system on 2026-10-14: Diehl is 2.18 au from the Sun and 1.19 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 90138 |
| Provisional designation | 2002 YD |
| Orbit class | Main-belt Asteroid |
| Rotation period | 8.07 hours |
| Absolute magnitude (H) | 16.71 |
| Orbital period | 3.47 years |
| Semi-major axis | 2.29 au |
| Perihelion – aphelion | 2.14 – 2.44 au |
| Eccentricity | 0.0642 |
| Inclination | 0.521° |
| Closest distance between its orbit and Earth's (MOID) | 1.14 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.