3401 Vanphilos

Vanphilos
Discovery
Discovered by	Harvard College
Discovery site	Agassiz Station
Discovery date	1 August 1981
Designations
MPC designation	3401
Alternative names	1981 PA
Orbital characteristics^[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	25587 days (70.05 yr)
Aphelion	3.2195526 AU (481.63821 Gm)
Perihelion	1.5152815 AU (226.68289 Gm)
Semi-major axis	2.367417 AU (354.1605 Gm)
Eccentricity	0.3599431
Orbital period	3.64 yr (1330.5 d)
Mean anomaly	101.79073°
Mean motion	0° 16^m 14.079^s / day
Inclination	21.79676°
Longitude of ascending node	322.38531°
Argument of perihelion	108.69530°
Earth MOID	0.661472 AU (98.9548 Gm)
Jupiter MOID	2.405 AU (359.8 Gm)
Jupiter Tisserand parameter	3.367
Physical characteristics
Dimensions	~15km
Rotation period	4.2261 h (0.17609 d)
Sidereal rotation period	4.2 h
Absolute magnitude (H)	12.3

3401 Vanphilos (1981 PA) is a Mars-crossing asteroid discovered on August 1, 1981 by Harvard College at Agassiz Station. With a diameter of ~15 km it is one of the largest Mars-crossing asteroids.

References

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3400 Aotearoa 3401 Vanphilos 3402 Wisdom

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