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

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3380749140760314 0.00030998  
a .857171745995115 6.408e-05 au
q .5673834816194148 0.00030812 au
i 7.572613168656456 0.0096226 deg
node 205.7395448064888 0.00015878 deg
peri 320.173329596698 0.0039542 deg
M 323.2923130940804 0.036048 deg
tp 2459230.056616460901
(2021-Jan-15.55661646)
0.03234 TDB
period 289.8679492716374
0.79
0.032505
8.899e-05
d
yr
n 1.241944826617038 0.00013927 deg/d
Q 1.146960010370815 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .34632  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:08:19  

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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3385146512993576 0.00030882  
q .5664296621926422 0.00030545 au
tp 2459230.106476188273
(2021-Jan-15.60647619)
0.032558 TDB
node 205.7695879929447 0.00025543 deg
peri 320.3313542382738 0.0034501 deg
i 7.600900812939706 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .34632  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:08:19  

Additional Information
 Jupiter MOID = 3.82921 au 
 T_jup = 6.828 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.537200181112255E-8 -9.433144815915632E-8 -1.005470722809826E-5 -7.880759110597516E-8 1.064458817540523E-6 2.95632386741573E-6
q -9.433144815915632E-8 9.330241592562971E-8 9.944972639606532E-6 7.795041543968221E-8 -1.05290631106322E-6 -2.924071374958239E-6
tp -1.005470722809826E-5 9.944972639606532E-6 .001060036138721673 8.307832734251426E-6 -.0001122096995553728 -.0003116733442347878
node -7.880759110597516E-8 7.795041543968221E-8 8.307832734251426E-6 6.524354786147672E-8 -8.806490057906796E-7 -2.442957699288411E-6
peri 1.064458817540523E-6 -1.05290631106322E-6 -.0001122096995553728 -8.806490057906796E-7 1.190303970616933E-5 3.299694776272914E-5
i 2.95632386741573E-6 -2.924071374958239E-6 -.0003116733442347878 -2.442957699288411E-6 3.299694776272914E-5 9.164020100080331E-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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