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(2018 WB1)
Classification: Centaur          SPK-ID: 3836292
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6942810209093796 3.1814e-06  
a 7.278812498784628 8.2488e-05 au
q 2.225271126120484 3.2023e-06 au
i 152.2582638437065 2.9884e-05 deg
node 147.6598131031404 2.1141e-05 deg
peri 111.6362892460663 0.00017201 deg
M 27.63151232599815 0.00048202 deg
tp 2458449.956829364760
(2018-Nov-27.45682936)
0.00039158 TDB
period 7172.808317198283
19.64
0.12193
0.0003338
d
yr
n .05018954697797039 8.5317e-07 deg/d
Q 12.33235387144877 0.00013976 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      266 days  
   first obs. used      2018-11-19  
   last obs. used      2019-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .4984  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-13 07:12:03  

Additional Information
 Earth MOID = 1.38151 au 
 Jupiter MOID = .235289 au 
 T_jup = -0.792 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   .30818 MPO477909 autocmod 2.6q

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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