618 Elfriede

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618 Elfriede
Discovery
Discovered by K. Lohnert
Discovery site Heidelberg
Discovery date17 October 1906
Designations
(618) Elfriede
PronunciationGerman: [ɛlˈfʁiːdə] [1]
1906 VZ
Orbital characteristics [2]
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
Mean radius
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. [3]

    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. [4]

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    References

    1. (German Names)
    2. "618 Elfriede (1906 VZ)". JPL Small-Body Database . NASA/Jet Propulsion Laboratory . Retrieved 5 May 2016.
    3. Asteroid Occultation - (618) Elfriede
    4. Carbo, Landy; et al. (July 2009), "Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory and Oakley Observatory: 2008 September and October", The Minor Planet Bulletin, 36 (3): 91–94, Bibcode:2009MPBu...36...91C.