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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04893168981157778 6.5745e-08  
a 3.234785644151501 3.8713e-08 au
q 3.076502116404935 2.326e-07 au
i 19.44599586325747 6.9743e-06 deg
node 243.6150486448128 1.7523e-05 deg
peri 226.7890606036135 8.6281e-05 deg
M 291.8198575105004 8.8877e-05 deg
tp 2459602.959414660985
(2022-Jan-23.45941466)		 0.00052803 TDB
period 2125.03793608628
5.82		 3.8148e-05
1.044e-07		 d
yr
n .1694087403743099 3.0412e-09 deg/d
Q 3.393069171898067 4.0607e-08 au
   Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      8393 days (22.98 yr)  
   first obs. used      1998-01-17  
   last obs. used      2021-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 13:09:32  

Additional Information
 Earth MOID = 2.11686 au 
 Jupiter MOID = 1.8895 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 14.68   n/a E2021B55  
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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