551 Ortrud

551 Ortrud
Discovery
Discovered by	Max Wolf
Discovery site	Heidelberg
Discovery date	16 November 1904
Designations
Alternative names	1904 PM
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	111.06 yr (40565 d)
Aphelion	3.3325 AU (498.53 Gm)
Perihelion	2.6019 AU (389.24 Gm)
Semi-major axis	2.9672 AU (443.89 Gm)
Eccentricity	0.12311
Orbital period	5.11 yr (1866.9 d)
Mean anomaly	306.688°
Mean motion	0° 11^m 34.188^s / day
Inclination	0.39727°
Longitude of ascending node	6.0272°
Argument of perihelion	68.010°
Earth MOID	1.61525 AU (241.638 Gm)
Jupiter MOID	1.92173 AU (287.487 Gm)
Jupiter Tisserand parameter	3.252
Physical characteristics
Mean radius	7001392299999999999♠39.23±2.05 km
Rotation period	13.05 h (0.544 d)
Geometric albedo	6998426000000000000♠0.0426±0.005
Absolute magnitude (H)	9.57

551 Ortrud is a minor planet orbiting the Sun. It is located in the Main Belt.

References

↑ "551 Ortrud (1904 PM)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.

External links

551 Ortrud at the JPL Small-Body Database

Discovery · Orbit diagram · Orbital elements · Physical parameters

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