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226561 (2003 WJ52)
Classification: Main-belt Asteroid          SPK-ID: 2226561
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0222838520619595 6.4847e-08  
a 3.184594094978961 4.5335e-08 au
q 3.11362907128906 2.2755e-07 au
i 8.739755563918836 5.7601e-06 deg
node 238.3330782398053 4.4016e-05 deg
peri 87.49965666957448 0.00017118 deg
M 333.8938580322454 0.00016105 deg
tp 2458751.028852076306
(2019-Sep-24.52885208)
0.00092795 TDB
period 2075.771548871696
5.68
4.4325e-05
1.214e-07
d
yr
n .1734294894809986 3.7034e-09 deg/d
Q 3.255559118668862 4.6345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      6306 days (17.26 yr)  
   first obs. used      2002-07-20  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59763  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:53:59  

Additional Information
 Earth MOID = 2.11662 au 
 Jupiter MOID = 1.83225 au 
 T_jup = 3.180 
[ 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 15.4   n/a MPO450051  
diameter diameter 5.950 km 0.390 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226561 (2003 WJ52)          Discovered 2003-Nov-20 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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