603 Timandra

603 Timandra is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on February 16, 1906, in Taunton, Massachusetts.

603 Timandra

Discovery
Discovered by	Joel Hastings Metcalf
Discovery site	Taunton, Massachusetts
Discovery date	16 February 1906
Designations
MPC designation	(603) Timandra
Pronunciation	/tɪˈmændrə/[1]
Alternative designations	1906 TJ
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	110.08 yr (40205 d)
Aphelion	2.9809 AU (445.94 Gm)
Perihelion	2.0947 AU (313.36 Gm)
Semi-major axis	2.5378 AU (379.65 Gm)
Eccentricity	0.17460
Orbital period (sidereal)	4.04 yr (1476.7 d)
Mean anomaly	87.1291°
Mean motion	0° 14m 37.644s / day
Inclination	8.0265°
Longitude of ascending node	343.455°
Argument of perihelion	159.764°
Physical characteristics
Mean radius	6.865±0.45 km
Synodic rotation period	41.79 h (1.741 d)[2][3]
Geometric albedo	0.1354±0.019
Absolute magnitude (H)	11.8

Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico, during 2010 gave a light curve with a long rotation period of 41.79 ± 0.02 hours and a brightness variation of 0.10 ± 0.02 in magnitude.^[3]