618 Elfriede

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]

618 Elfriede

Discovery
Discovered by	K. Lohnert
Discovery site	Heidelberg
Discovery date	17 October 1906
Designations
MPC designation	(618) Elfriede
Pronunciation	German: [ɛlˈfʁiːdə][1]
Alternative designations	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)
Semi-major axis	3.1887 AU (477.02 Gm)
Eccentricity	0.073271
Orbital period (sidereal)	5.69 yr (2079.8 d)
Mean anomaly	142.019°
Mean motion	0° 10m 23.124s / day
Inclination	17.037°
Longitude of ascending node	111.070°
Argument of perihelion	228.138°
Physical characteristics
Mean radius	60.145±2.5 km
Synodic rotation period	14.795 h (0.6165 d)
Geometric albedo	0.0606±0.005
Absolute magnitude (H)	8.3

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]