(91389) Davidsaewert Main-belt Asteroid
Discovered on 9 May 1999 by CSS at Catalina.
David Saewert (b. 1959) is an American software engineer and amateur astronomer. He has contributed to several citizen science projects focused on minor planets and he has discovered numerous asteroids.Naming citation (WGSBN Bull. 4, #11, 19), IAU / Minor Planet Center, via NASA/JPL
Where Davidsaewert is today
Seen from above the solar system on 2026-10-14: Davidsaewert is 2.77 au from the Sun and 1.93 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 91389 |
| Provisional designation | 1999 JN137 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.11 |
| Orbital period | 4.36 years |
| Semi-major axis | 2.67 au |
| Perihelion – aphelion | 2.22 – 3.12 au |
| Eccentricity | 0.168 |
| Inclination | 6.26° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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