軌道要素
The following orbital elements are taken from MPC 54168:
Epoch 2008 Apr. 4.0 TT = JDT 2454560.5
T 2008 Apr. 12.5944 TT                                  MPC
q   1.466611             (2000.0)            P               Q
n   0.1604862      Peri.  219.4701      +0.9457753      -0.3237668
a   3.353597       Node   159.3753      +0.3136302      +0.8892699
e   0.562675       Incl.    4.2583      +0.0845288      +0.3230698
P   6.14
From 242 observations 1987-2001, mean residual 0".9.  Nongravitational
     parameters A1 = +0.39, A2 = -0.1324.
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