(22780) McAlpine Main-belt Asteroid
Discovered on 20 March 1999 by LINEAR at Socorro.
Jayleen Jo McAlpine (b. 1993) is a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochemistry, medicine, health, and microbiology project. She attends the Sunburst Elementary School, Sunburst, Montana.Naming citation (20061009/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where McAlpine is today
Seen from above the solar system on 2026-10-14: McAlpine is 2.05 au from the Sun and 2.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22780 |
| Provisional designation | 1999 FS37 |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.87 km (#17,172 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.384 |
| Absolute magnitude (H) | 15.64 |
| Orbital period | 3.36 years |
| Semi-major axis | 2.24 au |
| Perihelion – aphelion | 2.02 – 2.46 au |
| Eccentricity | 0.0978 |
| Inclination | 4.69° |
| Closest distance between its orbit and Earth's (MOID) | 1.02 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 20 March 1999
- (10943) Brunier
- (11207) Black
- (17050) Weiskopf
- (17051) Oflynn
- (17052) Senthilvel
- (17053) Ashayshah
- (17910) Munyan
- (17911) Robertsnyder
- (17913) Strode
- (17914) Joannelee
- (28343) Florcalandra
- (29842) Marilynsoper