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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06806753686462302 5.6285e-08  
a 3.079910459154679 3.2752e-08 au
q 2.870268540436429 1.8347e-07 au
i 9.437246362942066 5.5318e-06 deg
node 280.6186367434789 3.5928e-05 deg
peri 129.5277821331176 5.7631e-05 deg
M 31.00563148472602 4.387e-05 deg
tp 2458830.462918171833
(2019-Dec-12.96291817)
0.00024035 TDB
period 1974.265529418267
5.41
3.1492e-05
8.622e-08
d
yr
n .1823462926519701 2.9086e-09 deg/d
Q 3.289552377872928 3.4981e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      6665 days (18.25 yr)  
   first obs. used      2002-07-21  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:31:57  

Additional Information
 Earth MOID = 1.89303 au 
 Jupiter MOID = 1.99151 au 
 T_jup = 3.204 
[ show covariance matrix ]

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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