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(2015 BK4)
Classification: Apollo [NEO]          SPK-ID: 3704157
[ 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4807491953468096 0.00042597  
a 1.66790755714249 0.0012136 au
q .8660623411333752 8.0325e-05 au
i .7498808676264112 0.00074461 deg
node 258.2877344503181 0.010661 deg
peri 278.4870219798865 0.0081076 deg
M 156.0483317474775 0.95815 deg
tp 2458659.453952342660
(2019-Jun-24.95395234)		 1.7218 TDB
period 786.78557970952
2.15		 0.85872
0.002351		 d
yr
n .4575579538874002 0.00049939 deg/d
Q 2.469752773151606 0.001797 au
   Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      10 days  
   first obs. used      2015-01-13  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .3591  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:36:15  

Additional Information
 Earth MOID = .00573299 au 
 Jupiter MOID = 2.49583 au 
 T_jup = 4.113 
[ 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 24.9   n/a MPO324255  

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