NEODyS-2
Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WB21 ∴ Orbital info ∴ Epoch 58387 MJD
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(380128) 1997WB21  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 380128.eq0)
Keplerian elements
(Epoch 58387.0 MJD)
Value 1-σ variation Units
a 1.46059 1.22e-09 au
e 0.317309 2.138e-08
i 3.391 3.073e-06 deg
Ω 281.043 3.464e-05 deg
ω 81.873 3.625e-05 deg
M 317.91 4.392e-06 deg
Other useful info
Absolute Magnitude (H)    20.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.9971 au
Aphelion distance 1.9241 au
Asc. node-Earth separation 0.24109 au
Desc. node-Earth separation 0.39304 au
Earth MOID 0.05122 au
Orbital period 644.751 days
Date of orbit computation   feb 26 13:18

Covariance matrix
1.48726195E-18-5.49370574E-18-1.12462471E-16-1.37494649E-159.46807973E-165.03457197E-16
-5.49370574E-184.56926950E-16-8.45297880E-157.70589146E-14-1.06043364E-131.98220072E-14
-1.12462471E-16-8.45297880E-159.44363266E-126.57741764E-11-6.37298011E-11-5.08363101E-13
-1.37494649E-157.70589146E-146.57741764E-111.19974431E-09-1.22383378E-091.42760210E-11
9.46807973E-16-1.06043364E-13-6.37298011E-11-1.22383378E-091.31370195E-09-4.87218800E-11
5.03457197E-161.98220072E-14-5.08363101E-131.42760210E-11-4.87218800E-111.92904524E-11

Correlation matrix
1.00000000-0.21074063-0.03000850-0.032549750.021420010.09399345
-0.210740631.00000000-0.128681720.10407709-0.136871080.21113150
-0.03000850-0.128681721.000000000.61793320-0.57216936-0.03766459
-0.032549750.104077090.617933201.00000000-0.974831740.09384078
0.02142001-0.13687108-0.57216936-0.974831741.00000000-0.30605847
0.093993450.21113150-0.037664590.09384078-0.306058471.00000000