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226559 (2003 WR38)
Classification: Main-belt Asteroid          SPK-ID: 2226559
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07193450514694542 5.0247e-08  
a 3.130792745011576 4.0083e-08 au
q 2.905580718181522 1.6838e-07 au
i 15.17048247323958 5.3149e-06 deg
node 268.063905696908 2.3157e-05 deg
peri 155.544159537105 6.1938e-05 deg
M 354.2457777772282 5.6057e-05 deg
tp 2459032.841788609049
(2020-Jul-02.34178861)
0.00031529 TDB
period 2023.391424332066
5.54
3.8858e-05
1.064e-07
d
yr
n .1779191093086886 3.4168e-09 deg/d
Q 3.356004771841631 4.2967e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      6363 days (17.42 yr)  
   first obs. used      2002-08-04  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 01:37:22  

Additional Information
 Earth MOID = 1.92628 au 
 Jupiter MOID = 1.91354 au 
 T_jup = 3.155 
[ show covariance matrix ]

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 15.2   n/a MPO454627  
diameter diameter 5.855 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226559 (2003 WR38)          Discovered 2003-Nov-19 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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