22899 Alconrad
Alconrad and its satellite imaged by the Hubble Space Telescope from November to December 2005 | |
| Discovery | |
|---|---|
| Discovered by | K. Korlević M. Jurić |
| Discovery site | Višnjan Obs. |
| Discovery date | 11 October 1999 |
| Designations | |
| (22899) Alconrad | |
Named after | Albert R. Conrad (American AO-expert) |
| 1999 TO14 · 1998 ML48 | |
| main-belt · Koronis | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 21.57 yr (7,877 days) |
| Aphelion | 3.0790 AU |
| Perihelion | 2.6094 AU |
| 2.8442 AU | |
| Eccentricity | 0.0825 |
| 4.80 yr (1,752 days) | |
| 300.93° | |
| 0° 12m 19.8s / day | |
| Inclination | 2.8820° |
| 136.00° | |
| 220.62° | |
| Known satellites | 1 |
| Physical characteristics | |
| Dimensions | 4.5 km 4.94 km (calculated) 5.682±0.471 km |
| 4.03±0.03 h 5.0206±0.0029 h | |
| 0.181±0.029 0.21 0.24 (assumed) | |
| S | |
| 13.677±0.004 (R) · 13.7 · 13.8 · 13.96±0.25 | |
22899 Alconrad (provisional designation 1999 TO14) is a Koronian asteroid and binary system from the outer region of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 11 October 1999, by Croatian astronomers Korado Korlević and Mario Jurić at the Višnjan Observatory, Croatia.
When its minor-planet moon was discovered in 2003, it was the smallest known main-belt asteroid to possess a satellite. It was later named after American astronomer Albert R. Conrad.