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437400 (2013 WN66)
Classification: Main-belt Asteroid          SPK-ID: 2437400
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1949871495013294 8.1707e-08  
a 2.343195726379953 1.8935e-08 au
q 1.886302670969429 1.8726e-07 au
i 4.74237563969337 9.0889e-06 deg
node 243.7680347461034 0.00012116 deg
peri 195.3364560408133 0.00012475 deg
M 279.2351334324073 2.9212e-05 deg
tp 2459294.421432692123
(2021-Mar-20.92143269)
0.00010769 TDB
period 1310.120603995673
3.59
1.588e-05
4.348e-08
d
yr
n .274783862571166 3.3307e-09 deg/d
Q 2.800088781790477 2.2627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      8100 days (22.18 yr)  
   first obs. used      1995-11-17  
   last obs. used      2018-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54383  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:50:59  

Additional Information
 Earth MOID = .902297 au 
 Jupiter MOID = 2.45478 au 
 T_jup = 3.532 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456917.5 (2014-Sep-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955566010266111 8.2003e-08  
q 1.885040397435442 1.884e-07 au
tp 2456671.372889139316
(2014-Jan-13.87288914)
9.7993e-05 TDB
node 243.8252194341875 0.00012102 deg
peri 194.7881978020048 0.0001246 deg
i 4.74442075311679 9.0954e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      8100 days (22.18 yr)  
   first obs. used      1995-11-17  
   last obs. used      2018-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54383  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:50:59  

Additional Information
 Jupiter MOID = 2.45478 au 
 T_jup = 3.532 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.724557988641713E-15 -1.540394556885611E-14 -4.171476804207888E-13 4.352312378385409E-14 -3.897628188131311E-13 5.555174919734889E-16
q -1.540394556885611E-14 3.549335075837008E-14 1.201832473485431E-12 -9.746836677309662E-14 9.61377359435853E-13 -1.740513420298554E-15
tp -4.171476804207888E-13 1.201832473485431E-12 9.602620504466487E-9 -9.958866960680811E-11 2.981059822266204E-9 -1.56113025798212E-11
node 4.352312378385409E-14 -9.746836677309662E-14 -9.958866960680811E-11 1.464576065834095E-8 -1.462579128075832E-8 3.280660000732678E-11
peri -3.897628188131311E-13 9.61377359435853E-13 2.981059822266204E-9 -1.462579128075832E-8 1.552621629090467E-8 -3.69846885199448E-11
i 5.555174919734889E-16 -1.740513420298554E-15 -1.56113025798212E-11 3.280660000732678E-11 -3.69846885199448E-11 8.272668194408726E-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 17.6   n/a MPO437696  

437400 (2013 WN66)          Discovered 1995-Nov-17 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04

Alternate Designations
 2013 WN66 = 1995 WJ38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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