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226563 (2003 WT68)
Classification: Outer Main-belt Asteroid          SPK-ID: 2226563
[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04880536790493185 6.6562e-08  
a 3.234299077391359 4.0343e-08 au
q 3.076447921004692 2.3359e-07 au
i 19.44690678567687 7.1285e-06 deg
node 243.6123575314742 1.8892e-05 deg
peri 226.9559375240135 8.8316e-05 deg
M 257.7555690744363 9.1007e-05 deg
tp 2459603.900760881597
(2022-Jan-24.40076088)		 0.00054271 TDB
period 2124.558491361931
5.82		 3.9751e-05
1.088e-07		 d
yr
n .1694469704946673 3.1704e-09 deg/d
Q 3.392150233778026 4.2312e-08 au
   Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      8319 days (22.78 yr)  
   first obs. used      1998-01-17  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52755  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:31:59  

Additional Information
 Earth MOID = 2.11728 au 
 Jupiter MOID = 1.89045 au 
 T_jup = 3.094 
[ 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 14.6   n/a MPO268233  
diameter diameter 6.604 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226563 (2003 WT68)          Discovered 2003-Nov-19 by Spacewatch at Kitt Peak
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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