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JPL Small-Body Database Browser
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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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4805362379828516 0.00042662  
a 1.668120275369664 0.0012146 au
q .8665280337406075 8.0712e-05 au
i .7499008503415422 0.00074614 deg
node 258.2953526183878 0.010723 deg
peri 278.4985327772713 0.0082671 deg
M 333.0425197445291 0.75811 deg
tp 2458659.427262139959
(2019-Jun-24.92726214)
1.7215 TDB
period 786.9360997150261
2.15
0.8595
0.002353
d
yr
n .4574704351857377 0.00049965 deg/d
Q 2.469712516998721 0.0017983 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 = .00576182 au 
 Jupiter MOID = 2.49729 au 
 T_jup = 4.112 
[ 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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