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226565 (2003 WR71)
Classification: Main-belt Asteroid          SPK-ID: 2226565
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06806753730642115 5.6435e-08  
a 3.079910459340665 3.2836e-08 au
q 2.870268539249057 1.8407e-07 au
i 9.43724653983063 5.5322e-06 deg
node 280.6186374107875 3.6012e-05 deg
peri 129.5277821261878 5.7683e-05 deg
M 31.00563086547258 4.3886e-05 deg
tp 2458830.462921552460
(2019-Dec-12.96292155)
0.00024043 TDB
period 1974.265529597096
5.41
3.1573e-05
8.644e-08
d
yr
n .1823462926354532 2.9161e-09 deg/d
Q 3.289552379432272 3.5071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      6396 days (17.51 yr)  
   first obs. used      2002-07-21  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:55:06  

Additional Information
 Earth MOID = 1.89303 au 
 Jupiter MOID = 1.99151 au 
 T_jup = 3.204 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457550.5 (2016-Jun-11.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0654981379285811 5.6076e-08  
q 2.88151038247247 1.8236e-07 au
tp 2456855.862962060374
(2014-Jul-17.36296206)
0.00025224 TDB
node 280.7698902631539 3.6044e-05 deg
peri 129.5142985290382 5.9335e-05 deg
i 9.427857360812931 5.5288e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      6396 days (17.51 yr)  
   first obs. used      2002-07-21  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:55:06  

Additional Information
 Jupiter MOID = 1.99151 au 
 T_jup = 3.204 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.144549563015974E-15 -1.008685289825458E-14 -2.960298701251691E-12 -2.223201539169036E-14 -6.356610182287847E-13 -1.834940782406123E-15
q -1.008685289825458E-14 3.325545654961885E-14 8.52567649738867E-12 7.758675827310431E-14 1.911095501825519E-12 6.257357786074817E-15
tp -2.960298701251691E-12 8.52567649738867E-12 6.362453693160159E-8 3.941297161713266E-11 1.192467898150415E-8 -1.159158107861325E-11
node -2.223201539169036E-14 7.758675827310431E-14 3.941297161713266E-11 1.299194435225392E-9 -1.272974551857792E-9 8.407054574752679E-12
peri -6.356610182287847E-13 1.911095501825519E-12 1.192467898150415E-8 -1.272974551857792E-9 3.52064985096605E-9 -1.034818248259786E-11
i -1.834940782406123E-15 6.257357786074817E-15 -1.159158107861325E-11 8.407054574752679E-12 -1.034818248259786E-11 3.056727461602416E-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 15.4   n/a MPO503110  

226565 (2003 WR71)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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