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(2019 BK4)
Classification: Apollo [NEO]          SPK-ID: 3838053
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 2458512.5 (2019-Jan-29.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4031348479999417 0.00073368  
a 1.543775676033514 0.0017358 au
q .9214259035297363 9.6744e-05 au
i 6.235313143713193 0.008981 deg
node 317.0427553412921 0.00084321 deg
peri 221.1023670470277 0.0045213 deg
M 339.1277042093302 0.039206 deg
tp 2458553.120235559240
(2019-Mar-10.62023556)
0.0078273 TDB
period 700.6073959465058
1.92
1.1816
0.003235
d
yr
n .5138398510818567 0.00086664 deg/d
Q 2.166125448537292 0.0024356 au
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      5 days  
   first obs. used      2019-01-28  
   last obs. used      2019-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .34771  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Feb-03 07:04:41  

Additional Information
 Earth MOID = .00250813 au 
 Jupiter MOID = 2.81414 au 
 T_jup = 4.362 
[ show covariance matrix ]

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 27.2   .39913 MPO467425 autocmod 2.6q

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