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(2020 TK4)
Classification: Aten [NEO]          SPK-ID: 54057206
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3380749133862773 0.00030998  
a .8571717465859356 6.408e-05 au
q .5673834826017314 0.00030812 au
i 7.57261318681065 0.0096226 deg
node 205.7395447389955 0.00015878 deg
peri 320.1733296280264 0.0039542 deg
M 323.2923131009871 0.036048 deg
tp 2459230.056616485898
(2021-Jan-15.55661649)
0.03234 TDB
period 289.8679495713322
0.79
0.032505
8.899e-05
d
yr
n 1.241944825332989 0.00013927 deg/d
Q 1.14696001057014 8.5744e-05 au
  Orbit Determination Parameters
   # obs. used (total)      58  
   data-arc span      11 days  
   first obs. used      2020-10-12  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .34632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-24 07:46:22  

Additional Information
 Earth MOID = .0118436 au 
 Jupiter MOID = 3.82921 au 
 T_jup = 6.828 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459138.5 (2020-Oct-16.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3385146505911205 0.00030882  
q .56642966316469 0.00030545 au
tp 2459230.106476216404
(2021-Jan-15.60647622)
0.032558 TDB
node 205.7695879262261 0.00025543 deg
peri 320.3313542743756 0.0034501 deg
i 7.600900831242623 0.0095729 deg
  Orbit Determination Parameters
   # obs. used (total)      58  
   data-arc span      11 days  
   first obs. used      2020-10-12  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .34632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-24 07:46:22  

Additional Information
 Jupiter MOID = 3.82921 au 
 T_jup = 6.828 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.537201775731504E-8 -9.433146393153528E-8 -1.005470891626823E-5 -7.880755268615379E-8 1.064458934727823E-6 2.956324366312817E-6
q -9.433146393153528E-8 9.330243152609079E-8 9.944974309375202E-6 7.795037743913101E-8 -1.052906426974094E-6 -2.924071868417289E-6
tp -1.005470891626823E-5 9.944974309375202E-6 .0010600363174395 8.307828689612235E-6 -.0001122097119883369 -.0003116733970493275
node -7.880755268615379E-8 7.795037743913101E-8 8.307828689612235E-6 6.524347347513349E-8 -8.80648526727161E-7 -2.442956512147309E-6
peri 1.064458934727823E-6 -1.052906426974094E-6 -.0001122097119883369 -8.80648526727161E-7 1.190304033568461E-5 3.299695144660417E-5
i 2.956324366312817E-6 -2.924071868417289E-6 -.0003116733970493275 -2.442956512147309E-6 3.299695144660417E-5 9.164021660810928E-5

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 26.3   .42368 E2020-UK5 autocmod 2.8

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