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461494 (2002 WN8)
Classification: Main-belt Asteroid          SPK-ID: 2461494
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1756585755174532 7.9317e-07  
a 2.516058050837714 1.8024e-08 au
q 2.074090877708341 1.9928e-06 au
i 11.10942514108271 9.9482e-06 deg
node 66.36978943919372 2.6852e-05 deg
peri 322.1506937379161 3.5582e-05 deg
M 164.695257178521 6.1256e-05 deg
tp 2458333.604166208713
(2018-Aug-03.10416621)
0.00024527 TDB
period 1457.73778964762
3.99
1.5664e-05
4.289e-08
d
yr
n .2469579937877737 2.6536e-09 deg/d
Q 2.958025223967086 2.119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      6359 days (17.41 yr)  
   first obs. used      2002-11-24  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63661  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 04:17:59  

Additional Information
 Earth MOID = 1.09229 au 
 Jupiter MOID = 2.49283 au 
 T_jup = 3.412 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456878.5 (2014-Aug-09.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .173630411170739 7.8971e-07  
q 2.080074878269618 1.9797e-06 au
tp 2456873.562134481549
(2014-Aug-04.06213448)
0.00023891 TDB
node 66.50260903986974 2.6873e-05 deg
peri 321.8539496322754 3.5926e-05 deg
i 11.10276612645174 9.9381e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      6359 days (17.41 yr)  
   first obs. used      2002-11-24  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63661  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 04:17:59  

Additional Information
 Jupiter MOID = 2.49283 au 
 T_jup = 3.412 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.236448851012696E-13 -1.563380411211281E-12 1.778713213239811E-10 3.491337053209701E-13 5.5638932777421E-12 4.166476150554863E-13
q -1.563380411211281E-12 3.919365580592635E-12 -4.454053095251134E-10 -8.744125936240829E-13 -1.381903961882231E-11 -1.044411864261469E-12
tp 1.778713213239811E-10 -4.454053095251134E-10 5.7079966309036E-8 1.005568015004358E-10 3.416061342025166E-9 1.066529850986934E-10
node 3.491337053209701E-13 -8.744125936240829E-13 1.005568015004358E-10 7.221747400287561E-10 -7.033779547366444E-10 -4.142169741656484E-11
peri 5.5638932777421E-12 -1.381903961882231E-11 3.416061342025166E-9 -7.033779547366444E-10 1.290673073442732E-9 4.086286506691355E-11
i 4.166476150554863E-13 -1.044411864261469E-12 1.066529850986934E-10 -4.142169741656484E-11 4.086286506691355E-11 9.876635058298261E-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 16.8   n/a MPO456234  

461494 (2002 WN8)          Discovered 2002-Nov-24 by NEAT at Palomar
Reference: Last Updated: 2016-03-24

Alternate Designations
 2002 WN8 = 2006 VX137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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