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442526 (2011 WG104)
Classification: Main-belt Asteroid          SPK-ID: 2442526
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03351875765644124 6.4378e-08  
a 3.051385619775222 5.9573e-08 au
q 2.949106964669626 1.9689e-07 au
i 7.367395927500721 7.3542e-06 deg
node 334.5845790492837 5.3792e-05 deg
peri 82.04299097168666 0.00012759 deg
M 217.7967768687444 0.00011873 deg
tp 2459769.543682680127
(2022-Jul-09.04368268)
0.00065148 TDB
period 1946.901903266313
5.33
5.7015e-05
1.561e-07
d
yr
n .1849091622931945 5.4151e-09 deg/d
Q 3.153664274880817 6.157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      4101 days (11.23 yr)  
   first obs. used      2008-02-02  
   last obs. used      2019-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60159  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:41:35  

Additional Information
 Earth MOID = 1.97145 au 
 Jupiter MOID = 1.97006 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457490.5 (2016-Apr-12.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0359128221279295 6.4358e-08  
q 2.938747345781832 1.9675e-07 au
tp 2457828.676248983342
(2017-Mar-16.17624898)
0.00058613 TDB
node 334.6838945741712 5.383e-05 deg
peri 82.64551799702862 0.00012055 deg
i 7.366990494959082 7.3543e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      4101 days (11.23 yr)  
   first obs. used      2008-02-02  
   last obs. used      2019-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60159  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:41:35  

Additional Information
 Jupiter MOID = 1.97006 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.141933291268338E-15 -1.211415464180889E-14 -1.35339272606238E-12 -1.140436103389115E-14 -3.58438774276049E-13 -9.417358460383939E-16
q -1.211415464180889E-14 3.871212344245106E-14 1.559903388366294E-11 3.181509567158961E-14 3.09267456908081E-12 5.750348425247692E-15
tp -1.35339272606238E-12 1.559903388366294E-11 3.435536504709414E-7 -4.550593944166557E-11 6.32679308083695E-8 -6.41188409762222E-12
node -1.140436103389115E-14 3.181509567158961E-14 -4.550593944166557E-11 2.897706032523637E-9 -2.881502424460829E-9 2.67503998761336E-11
peri -3.58438774276049E-13 3.09267456908081E-12 6.32679308083695E-8 -2.881502424460829E-9 1.453212328445944E-8 -2.778824759593426E-11
i -9.417358460383939E-16 5.750348425247692E-15 -6.41188409762222E-12 2.67503998761336E-11 -2.778824759593426E-11 5.40863658364929E-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 16.5   n/a MPO437721  

442526 (2011 WG104)          Discovered 2008-Feb-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 WG104 = 2013 BC66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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