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(2020 WK1)
Classification: Apollo [NEO]          SPK-ID: 54090621
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09771513131342377 3.3976e-05  
a 1.106714510534752 4.4612e-05 au
q .9985717568113776 2.6525e-06 au
i 9.426015059102422 0.0026575 deg
node 58.50449518765566 0.00010033 deg
peri 356.1862280499817 0.0013095 deg
M 216.1441998557582 0.0096677 deg
tp 2459170.432602772234
(2020-Nov-16.93260277)
0.0013363 TDB
period 425.2573544943222
1.16
0.025713
7.04e-05
d
yr
n .8465462059511696 5.1187e-05 deg/d
Q 1.214857264258127 4.8971e-05 au
  Orbit Determination Parameters
   # obs. used (total)      130  
   data-arc span      4 days  
   first obs. used      2020-11-18  
   last obs. used      2020-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .40977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-04 05:18:57  

Additional Information
 Earth MOID = .0112516 au 
 Jupiter MOID = 3.92905 au 
 T_jup = 5.607 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459172.5 (2020-Nov-19.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09839318123158418 3.3695e-05  
q .9983770362588614 2.7932e-06 au
tp 2459171.053492369589
(2020-Nov-17.55349237)
0.0018131 TDB
node 58.37470551067143 1.3571e-05 deg
peri 356.9741219377319 0.0019043 deg
i 9.508327781374856 0.0026081 deg
  Orbit Determination Parameters
   # obs. used (total)      130  
   data-arc span      4 days  
   first obs. used      2020-11-18  
   last obs. used      2020-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .40977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-04 05:18:57  

Additional Information
 Jupiter MOID = 3.92905 au 
 T_jup = 5.607 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.135324225139107E-9 9.406954832270847E-11 -5.608741686225827E-8 4.370527523620905E-10 -5.910106042501023E-8 8.786184722080464E-8
q 9.406954832270847E-11 7.802123208996054E-12 -4.596101173512241E-9 3.644183647777917E-11 -4.84419684970267E-9 7.283857867045054E-9
tp -5.608741686225827E-8 -4.596101173512241E-9 3.287403352831834E-6 -1.960125370329977E-8 3.452704410710009E-6 -4.324752634610857E-6
node 4.370527523620905E-10 3.644183647777917E-11 -1.960125370329977E-8 1.841836075587586E-10 -2.070619375887916E-8 3.387749901335823E-8
peri -5.910106042501023E-8 -4.84419684970267E-9 3.452704410710009E-6 -2.070619375887916E-8 3.626534980624219E-6 -4.557457147038415E-6
i 8.786184722080464E-8 7.283857867045054E-9 -4.324752634610857E-6 3.387749901335823E-8 -4.557457147038415E-6 6.80236002299478E-6

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 27.448   .575 6 autocmod 2.8

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