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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1687521061960919 9.0167e-08  
a 2.432146137272413 3.5069e-08 au
q 2.021716354031004 2.3276e-07 au
i 4.545541232651537 1.2533e-05 deg
node 94.6975622388679 0.00011363 deg
peri 263.243191096893 0.00013172 deg
M 53.01094759434773 4.8604e-05 deg
tp 2458796.492566143628
(2019-Nov-08.99256614)		 0.00018881 TDB
period 1385.424700390086
3.79		 2.9964e-05
8.204e-08		 d
yr
n .259848117258655 5.6201e-09 deg/d
Q 2.842575920513822 4.0987e-08 au
   Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      4951 days (13.56 yr)  
   first obs. used      2006-01-31  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51844  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:56  

Additional Information
 Earth MOID = 1.02383 au 
 Jupiter MOID = 2.6097 au 
 T_jup = 3.483 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457575.5 (2016-Jul-06.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703408762585984 9.0401e-08  
q 2.017347613257947 2.3378e-07 au
tp 2457410.506818947290
(2016-Jan-23.00681895)		 0.00019857 TDB
node 94.74256302328841 0.00011383 deg
peri 263.0604625112609 0.0001314 deg
i 4.543472064814478 1.2522e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      4951 days (13.56 yr)  
   first obs. used      2006-01-31  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51844  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:56  

Additional Information
 Jupiter MOID = 2.6097 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.172403702964135E-15 -2.09975627578479E-14 -7.602700939731293E-13 -5.012545953199351E-15 4.505672359270007E-14 -2.661283767179279E-14
q -2.09975627578479E-14 5.46537775156465E-14 -1.204723312443367E-12 7.184123468077983E-14 -1.151101194373765E-12 7.153137013443543E-14
tp -7.602700939731293E-13 -1.204723312443367E-12 3.942871404943529E-8 -5.386713733722506E-10 1.309588638961944E-8 -2.077981303277868E-12
node -5.012545953199351E-15 7.184123468077983E-14 -5.386713733722506E-10 1.295754322831158E-8 -1.308675705893028E-8 7.880229004543931E-10
peri 4.505672359270007E-14 -1.151101194373765E-12 1.309588638961944E-8 -1.308675705893028E-8 1.726617694815021E-8 -7.86727766257005E-10
i -2.661283767179279E-14 7.153137013443543E-14 -2.077981303277868E-12 7.880229004543931E-10 -7.86727766257005E-10 1.568118299438319E-10

[ 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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