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(2019 EK)
Classification: Apollo [NEO]          SPK-ID: 3838880
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2451509880441469 0.00033653  
a 1.322247781977047 0.00059973 au
q .9980974317861924 8.2942e-06 au
i 18.74850578000254 0.015355 deg
node 161.5952609372758 3.8254e-05 deg
peri 20.7660527475497 0.0044436 deg
M 282.7553316879263 0.18873 deg
tp 2459119.660882118479
(2020-Sep-27.16088212)
0.37221 TDB
period 555.351178276044
1.52
0.37784
0.001034
d
yr
n .6482384733881985 0.00044103 deg/d
Q 1.646398132167902 0.00074676 au
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      2 days  
   first obs. used      2019-03-02  
   last obs. used      2019-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .4567  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Mar-18 07:01:27  

Additional Information
 Earth MOID = .0191118 au 
 Jupiter MOID = 3.32245 au 
 T_jup = 4.861 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458545.5 (2019-Mar-03.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2453412475647307 0.00033631  
q .9982512381378448 8.4038e-06 au
tp 2458564.244425383251
(2019-Mar-21.74442538)
0.0056871 TDB
node 161.6170826409747 8.2614e-05 deg
peri 20.64813445317666 0.0041114 deg
i 18.77215554165391 0.015303 deg
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      2 days  
   first obs. used      2019-03-02  
   last obs. used      2019-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .4567  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Mar-18 07:01:27  

Additional Information
 Jupiter MOID = 3.32245 au 
 T_jup = 4.861 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.131022693159187E-7 2.638694440938917E-9 -1.776676602489276E-6 -2.774787320375992E-8 -1.133543706852409E-6 5.145503733724872E-6
q 2.638694440938917E-9 7.062407933893845E-11 -4.777693014262643E-8 -6.518826904917256E-10 -3.352090731229097E-8 1.208533618622403E-7
tp -1.776676602489276E-6 -4.777693014262643E-8 3.234279044531856E-5 4.388880446542663E-7 2.276390974184896E-5 -8.137517397718966E-5
node -2.774787320375992E-8 -6.518826904917256E-10 4.388880446542663E-7 6.825074511764213E-9 2.814529839121299E-7 -1.262744271731803E-6
peri -1.133543706852409E-6 -3.352090731229097E-8 2.276390974184896E-5 2.814529839121299E-7 1.690399752338524E-5 -5.218177734566641E-5
i 5.145503733724872E-6 1.208533618622403E-7 -8.137517397718966E-5 -1.262744271731803E-6 -5.218177734566641E-5 .0002341898009159684

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 26.4   .54744 MPO467497 autocmod 2.6q

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