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226558 (2003 WD37)
Classification: Main-belt Asteroid          SPK-ID: 2226558
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .193840583976527 4.5095e-08  
a 3.089834435416494 3.7399e-08 au
q 2.490899124064578 1.4372e-07 au
i 9.278386242706329 5.6852e-06 deg
node 286.2302699321678 4.4693e-05 deg
peri 196.4018854948949 5.1132e-05 deg
M 328.3879215699782 2.5231e-05 deg
tp 2459174.701459904279
(2020-Nov-21.20145990)
0.00014082 TDB
period 1983.815322499733
5.43
3.6018e-05
9.861e-08
d
yr
n .1814685046117988 3.2947e-09 deg/d
Q 3.688769746768409 4.4649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      6321 days (17.31 yr)  
   first obs. used      2002-10-05  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:54:33  

Additional Information
 Earth MOID = 1.50835 au 
 Jupiter MOID = 1.43761 au 
 T_jup = 3.176 
[ 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 15.5   n/a MPO454627  
diameter diameter 2.835 km 0.802 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.139   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226558 (2003 WD37)          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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