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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04784866869934462 9.2023e-08  
a 2.598702153203909 4.0958e-08 au
q 2.474357714826982 2.5051e-07 au
i 3.530566843951497 9.7456e-06 deg
node 276.7536918448642 0.00011058 deg
peri 30.38306062678796 0.00013409 deg
M 44.6078771937081 7.6826e-05 deg
tp 2458810.898293454690
(2019-Nov-23.39829345)
0.00032469 TDB
period 1530.147109666523
4.19
3.6175e-05
9.904e-08
d
yr
n .2352714962670861 5.5621e-09 deg/d
Q 2.723046591580836 4.2917e-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 = 1.46 au 
 Jupiter MOID = 2.39051 au 
 T_jup = 3.411 
[ 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 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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