303 Josephina

303 Josephina
Discovery
Discovered by	Elia Millosevich
Discovery date	12 February 1891
Designations
Minor planet category	Main belt
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	124.85 yr (45600 d)
Aphelion	3.31643 AU (496.131 Gm)
Perihelion	2.92967 AU (438.272 Gm)
Semi-major axis	3.12305 AU (467.202 Gm)
Eccentricity	0.061920
Orbital period	5.52 yr (2015.9 d)
Average orbital speed	16.86 km/s
Mean anomaly	357.173°
Mean motion	0° 10^m 42.892^s / day
Inclination	6.87269°
Longitude of ascending node	344.002°
Argument of perihelion	64.1014°
Earth MOID	1.94552 AU (291.046 Gm)
Jupiter MOID	1.94912 AU (291.584 Gm)
Jupiter Tisserand parameter	3.201
Physical characteristics
Dimensions	7004992900000000000♠99.29±1.9 km
Mass	unknown
Mean density	unknown
Equatorial surface gravity	unknown
Equatorial escape velocity	unknown
Rotation period	12.497 h (0.5207 d)
Geometric albedo	6998594000000000000♠0.0594±0.002
Temperature	unknown
Spectral type	unknown
Absolute magnitude (H)	8.9

303 Josephina is a large Main belt asteroid.^[1] It was discovered by Elia Millosevich on February 12, 1891 in Rome. It was first of his two asteroid discoveries. The other was 306 Unitas.

References

Minor planets navigator

302 Clarissa 303 Josephina 304 Olga

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