2016 CP31

2016 CP₃₁
Discovery
Discovered by	Catalina Sky Survey
Discovery date	7 February 2016
Designations
MPC designation	2016 CP₃₁
Minor planet category	Martian L5
Orbital characteristics
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc	1652 days (4.52 yr)
Aphelion	1.61311791 AU (241.319005 Gm)
Perihelion	1.4341118 AU (214.54007 Gm)
Semi-major axis	1.52361487 AU (227.929540 Gm)
Eccentricity	0.0587439
Orbital period (sidereal)	1.88 yr (686.92802 d)
Mean anomaly	122.0549°
Mean motion	0° 31^m 26.661^s /day
Inclination	23.130505°
Longitude of ascending node	154.488290°
Argument of perihelion	329.2083°
Earth MOID	0.455015 AU (68.0693 Gm)
Jupiter MOID	3.39497 AU (507.880 Gm)
Physical characteristics
Mean diameter	400 m
Geometric albedo	0.5-0.05 (assumed)
Absolute magnitude (H)	19.5

2016 CP₃₁ is a small asteroid and Mars trojan orbiting near the L₅ point of Mars (60 degrees behind Mars on its orbit).