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542 Susanna
Discovery
Discovered by	Paul Götz August Kopff
Discovery site	Heidelberg
Discovery date	15 August 1904
Designations
MPC designation	(542) Susanna
Alternative designations	1904 OQ
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	111.66 yr (40784 d)
Aphelion	3.3156 AU (496.01 Gm)
Perihelion	2.5011 AU (374.16 Gm)
Semi-major axis	2.9084 AU (435.09 Gm)
Eccentricity	0.14003
Orbital period (sidereal)	4.96 yr (1811.7 d)
Mean anomaly	197.019°
Mean motion	0° 11^m 55.356^s / day
Inclination	12.076°
Longitude of ascending node	152.993°
Argument of perihelion	216.495°
Physical characteristics
Mean radius	20.785±0.5 km
Synodic rotation period	10.069 h (0.4195 d)
Geometric albedo	0.1843±0.009
Absolute magnitude (H)	9.36

542 Susanna is a minor planet orbiting the Sun.^[2]

^ "542 Susanna (1904 OQ)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Archived from the original on 5 March 2017. Retrieved 5 May 2016.
^ "(542) Susanna". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. 1 January 2003. pp. 57. doi:10.1007/978-3-540-29925-7_543. ISBN 978-3-540-00238-3.