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JPL Small-Body Database Browser
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392949 (2012 WK15)
Classification: Main-belt Asteroid          SPK-ID: 2392949
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0487188024245846 9.1688e-08  
a 2.600711211477156 4.1133e-08 au
q 2.474007675801798 2.5028e-07 au
i 3.529534074062404 9.7417e-06 deg
node 276.7565335611473 0.0001106 deg
peri 30.62432740495493 0.00013349 deg
M 310.3421576970465 7.4845e-05 deg
tp 2458811.810932195430
(2019-Nov-24.31093220)
0.00032055 TDB
period 1531.92188911982
4.19
3.6343e-05
9.95e-08
d
yr
n .2349989268753392 5.5751e-09 deg/d
Q 2.727414747152513 4.3136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      4837 days (13.24 yr)  
   first obs. used      2004-12-19  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62339  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:15:11  

Additional Information
 Earth MOID = 1.45892 au 
 Jupiter MOID = 2.38876 au 
 T_jup = 3.410 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456874.5 (2014-Aug-05.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04850683623137669 9.0991e-08  
q 2.472668027977366 2.4776e-07 au
tp 2457288.406875052799
(2015-Sep-22.90687505)
0.00031312 TDB
node 276.8080515338054 0.0001107 deg
peri 32.38604268832757 0.00013441 deg
i 3.528104412931401 9.7395e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      4837 days (13.24 yr)  
   first obs. used      2004-12-19  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62339  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:15:11  

Additional Information
 Jupiter MOID = 2.38876 au 
 T_jup = 3.410 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.279291400122777E-15 -2.227811811944109E-14 -7.329838730941513E-12 9.272325153947771E-14 -1.859676336188719E-12 3.417314440840877E-15
q -2.227811811944109E-14 6.138497374127386E-14 2.286253243306723E-11 -2.561465517419566E-13 5.680237029256631E-12 -8.711534698939951E-15
tp -7.329838730941513E-12 2.286253243306723E-11 9.804546720287975E-8 -2.410460978145933E-10 2.390174213899994E-8 -9.623507287160029E-12
node 9.272325153947771E-14 -2.561465517419566E-13 -2.410460978145933E-10 1.225458156395452E-8 -1.228866331807607E-8 3.584652692541833E-10
peri -1.859676336188719E-12 5.680237029256631E-12 2.390174213899994E-8 -1.228866331807607E-8 1.806698794937372E-8 -3.600678003475692E-10
i 3.417314440840877E-15 -8.711534698939951E-15 -9.623507287160029E-12 3.584652692541833E-10 -3.600678003475692E-10 9.485747621287877E-11

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 16.6   n/a MPO397431  

392949 (2012 WK15)          Discovered 2004-Dec-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 WK15 = 2011 OK52 = 2012 XT26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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