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123801 (2001 BK54)
Classification: Main-belt Asteroid          SPK-ID: 2123801
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .133734394302884 5.6913e-08  
a 3.118211750993383 2.7806e-08 au
q 2.701199591166147 1.6997e-07 au
i 10.65178315212952 6.0716e-06 deg
node 326.285610792928 2.4676e-05 deg
peri 311.0589219913839 3.5517e-05 deg
M 62.83357361107567 2.9432e-05 deg
tp 2458649.468497900741
(2019-Jun-14.96849790)
0.00016202 TDB
period 2011.207281284693
5.51
2.6902e-05
7.365e-08
d
yr
n .1789969653302189 2.3943e-09 deg/d
Q 3.535223910820618 3.1525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      679  
   data-arc span      8047 days (22.03 yr)  
   first obs. used      1998-10-12  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51999  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:32:29  

Additional Information
 Earth MOID = 1.69936 au 
 Jupiter MOID = 1.74387 au 
 T_jup = 3.177 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO436600  

123801 (2001 BK54)          Discovered 2001-Jan-18 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2001 BK54 = 2003 QW32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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