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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04880539449738355 8.867e-08  
a 3.234299101295306 5.5253e-08 au
q 3.076447857734056 2.8113e-07 au
i 19.44690315176511 1.1877e-05 deg
node 243.6123451827914 2.2268e-05 deg
peri 226.955910563718 0.00010897 deg
M 257.7555997832963 0.00011031 deg
tp 2459603.900586341070
(2022-Jan-24.40058634)		 0.00065707 TDB
period 2124.558514915102
5.82		 5.4442e-05
1.491e-07		 d
yr
n .169446968616153 4.3421e-09 deg/d
Q 3.392150344856557 5.795e-08 au
   Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      7481 days (20.48 yr)  
   first obs. used      1998-01-17  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59833  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:46:20  

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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