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(2020 WC)
Classification: Apollo [NEO]          SPK-ID: 54088804
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4782493117605108 0.00015274  
a 1.904865881469328 0.00056182 au
q .9938650846605432 2.1898e-06 au
i .3304112133190233 8.066e-05 deg
node 226.1605221492965 0.00073622 deg
peri 204.4999142428983 0.00067785 deg
M 290.9865164108646 0.030706 deg
tp 2459184.588424377071
(2020-Dec-01.08842438)
0.00046421 TDB
period 960.2736933305405
2.63
0.42483
0.001163
d
yr
n .3748931190142294 0.00016586 deg/d
Q 2.815866678278113 0.00083051 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      10 days  
   first obs. used      2020-11-16  
   last obs. used      2020-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .42345  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-01 05:19:26  

Additional Information
 Earth MOID = .00863966 au 
 Jupiter MOID = 2.504 au 
 T_jup = 3.794 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459173.5 (2020-Nov-20.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4798022899653504 0.00015188  
q .9935858995330469 2.2495e-06 au
tp 2459184.618698440167
(2020-Dec-01.11869844)
0.00048557 TDB
node 226.0967349606736 0.0007021 deg
peri 204.6193768066509 0.00061851 deg
i .3295064127878837 8.1252e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      10 days  
   first obs. used      2020-11-16  
   last obs. used      2020-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .42345  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-01 05:19:26  

Additional Information
 Jupiter MOID = 2.504 au 
 T_jup = 3.794 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.306849756536065E-8 3.415405467429487E-10 -7.352364111095098E-8 -9.147988633581584E-8 7.547661384268029E-8 1.22659995227121E-8
q 3.415405467429487E-10 5.06044180940111E-12 -1.090763879665261E-9 -1.352280218191961E-9 1.112648298557698E-9 1.816791236141646E-10
tp -7.352364111095098E-8 -1.090763879665261E-9 2.357820963064429E-7 2.902025720914256E-7 -2.374384761742229E-7 -3.913658892012765E-8
node -9.147988633581584E-8 -1.352280218191961E-9 2.902025720914256E-7 4.929483310388353E-7 -4.311317239087533E-7 -4.550977861058729E-8
peri 7.547661384268029E-8 1.112648298557698E-9 -2.374384761742229E-7 -4.311317239087533E-7 3.825531060969538E-7 3.694875878101119E-8
i 1.22659995227121E-8 1.816791236141646E-10 -3.913658892012765E-8 -4.550977861058729E-8 3.694875878101119E-8 6.601887666179295E-9

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 27.548   .58007 8 autocmod 2.8

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