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442747 (2012 WO15)
Classification: Main-belt Asteroid          SPK-ID: 2442747
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1688429460119637 8.1431e-08  
a 2.432533205318605 2.5834e-08 au
q 2.021817132660686 2.033e-07 au
i 4.545314184830293 9.6801e-06 deg
node 94.69727490284339 0.00010623 deg
peri 263.2887488715634 0.00011391 deg
M 104.9183171678051 3.349e-05 deg
tp 2458796.635752768688
(2019-Nov-09.13575277)
0.00012921 TDB
period 1385.755442214492
3.79
2.2076e-05
6.044e-08
d
yr
n .25978609863852 4.1385e-09 deg/d
Q 2.843249277976523 3.0196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      5471 days (14.98 yr)  
   first obs. used      2006-01-31  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49086  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:12:33  

Additional Information
 Earth MOID = 1.02229 au 
 Jupiter MOID = 2.60988 au 
 T_jup = 3.483 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457988.5 (2017-Aug-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1701529384533564 8.1636e-08  
q 2.017678632350112 2.0402e-07 au
tp 2457410.300249710649
(2016-Jan-22.80024971)
0.00012983 TDB
node 94.74000027183132 0.00010641 deg
peri 263.0246911389069 0.00011387 deg
i 4.543489638366844 9.6714e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      5471 days (14.98 yr)  
   first obs. used      2006-01-31  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49086  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:12:33  

Additional Information
 Jupiter MOID = 2.60988 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.664465670336179E-15 -1.656779750903567E-14 -4.637311424858769E-12 2.090914500908736E-15 -1.311631939785826E-12 -2.448644533610156E-14
q -1.656779750903567E-14 4.162398240275285E-14 1.067345895262821E-11 2.055501124026946E-14 3.017064059099872E-12 6.345393603323318E-14
tp -4.637311424858769E-12 1.067345895262821E-11 1.685704744649183E-8 -1.425183919730025E-10 5.315646043953884E-9 1.944526394137015E-11
node 2.090914500908736E-15 2.055501124026946E-14 -1.425183919730025E-10 1.132270929865258E-8 -1.133051692236243E-8 5.589606781272067E-10
peri -1.311631939785826E-12 3.017064059099872E-12 5.315646043953884E-9 -1.133051692236243E-8 1.296524491502677E-8 -5.515245259077137E-10
i -2.448644533610156E-14 6.345393603323318E-14 1.944526394137015E-11 5.589606781272067E-10 -5.515245259077137E-10 9.35366208597289E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO343131  

442747 (2012 WO15)          Discovered 2008-Oct-07 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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