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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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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1334094903428001 5.6169e-08  
a 3.118715334623054 2.7151e-08 au
q 2.702649111306717 1.6695e-07 au
i 10.65175845931252 5.7005e-06 deg
node 326.2846310433564 2.4632e-05 deg
peri 311.1165069711018 3.5344e-05 deg
M 133.6834249627387 2.98e-05 deg
tp 2458649.471633644587
(2019-Jun-14.97163364)
0.00016127 TDB
period 2011.69450859676
5.51
2.6271e-05
7.193e-08
d
yr
n .1789536127188192 2.3369e-09 deg/d
Q 3.53478155793939 3.0774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      794  
   data-arc span      8157 days (22.33 yr)  
   first obs. used      1998-10-12  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51098  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:55:51  

Additional Information
 Earth MOID = 1.70052 au 
 Jupiter MOID = 1.74277 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 14.48   n/a E2021B55  

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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