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JPL Small-Body Database Browser
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(2019 VK4)
Classification: Apollo [NEO]          SPK-ID: 3892744
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 .5630054659639837 0.00060846  
a 1.810782252143204 0.0021964 au
q .7913019465160077 0.00014197 au
i 5.851316316637858 0.0061119 deg
node 32.23152134272812 5.1706e-05 deg
peri 79.1673954895253 0.00061044 deg
M 64.44330360026257 0.11172 deg
tp 2458841.178984539383
(2019-Dec-23.67898454)
0.013668 TDB
period 890.0159110649408
2.44
1.6193
0.004433
d
yr
n .4044871507625578 0.00073593 deg/d
Q 2.830262557770401 0.003433 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      11 days  
   first obs. used      2019-10-27  
   last obs. used      2019-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .83317  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-22 04:56:17  

Additional Information
 Earth MOID = .0262549 au 
 Jupiter MOID = 2.34367 au 
 T_jup = 3.844 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458787.5 (2019-Oct-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5629546762692027 0.00060863  
q .7911941814521272 0.00014191 au
tp 2458841.196011074483
(2019-Dec-23.69601107)
0.013715 TDB
node 32.29682480109245 0.00024598 deg
peri 79.11512598137841 0.00075274 deg
i 5.873495802222459 0.0060654 deg
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      11 days  
   first obs. used      2019-10-27  
   last obs. used      2019-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .83317  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-22 04:56:17  

Additional Information
 Jupiter MOID = 2.34367 au 
 T_jup = 3.844 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.704252463887665E-7 -8.637054826419605E-8 -8.347395746000321E-6 -1.483884844096478E-7 4.551550366056039E-7 3.691379706178376E-6
q -8.637054826419605E-8 2.013892089440449E-8 1.946315893616673E-6 3.460040560393294E-8 -1.061644616488138E-7 -8.606979389495021E-7
tp -8.347395746000321E-6 1.946315893616673E-6 .0001881076765495114 3.344178927310951E-6 -1.025382765677187E-5 -8.318208099443377E-5
node -1.483884844096478E-7 3.460040560393294E-8 3.344178927310951E-6 6.050817696196006E-8 -1.832524577233517E-7 -1.477585038778646E-6
peri 4.551550366056039E-7 -1.061644616488138E-7 -1.025382765677187E-5 -1.832524577233517E-7 5.66618732841498E-7 4.535573615969095E-6
i 3.691379706178376E-6 -8.606979389495021E-7 -8.318208099443377E-5 -1.477585038778646E-6 4.535573615969095E-6 3.678894683441614E-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 26.7   .40206 E2019X90 autocmod 2.8

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