618 Elfriede
| Discovery | |
|---|---|
| Discovered by | K. Lohnert |
| Discovery site | Heidelberg |
| Discovery date | 17 October 1906 |
| Designations | |
| (618) Elfriede | |
| Pronunciation | German: [ɛlˈfʁiːdə] |
| 1906 VZ | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 109.50 yr (39996 d) |
| Aphelion | 3.4223 AU (511.97 Gm) |
| Perihelion | 2.9551 AU (442.08 Gm) |
| 3.1887 AU (477.02 Gm) | |
| Eccentricity | 0.073271 |
| 5.69 yr (2079.8 d) | |
| 142.019° | |
| 0° 10m 23.124s / day | |
| Inclination | 17.037° |
| 111.070° | |
| 228.138° | |
| Physical characteristics | |
| 60.145±2.5 km | |
| 14.795 h (0.6165 d) | |
| 0.0606±0.005 | |
| 8.3 | |
618 Elfriede is a minor planet orbiting the Sun. On July 24, 2013, it occulted the magnitude 12.8 star 2UCAC 23949304, over parts of Mexico and southwestern United States.
Photometric observations of this asteroid collected during 2008 show a rotation period of 14.85 ± 0.01 hours with a brightness variation of 0.12 ± 0.02 magnitude.