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259286 (2003 EJ20)
Classification: Main-belt Asteroid          SPK-ID: 2259286
[ 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 .2144306191111295 6.1726e-08  
a 3.116238988347375 3.2143e-08 au
q 2.448021932777807 1.9712e-07 au
i 25.71303133076062 7.8314e-06 deg
node 171.3817200963749 1.3452e-05 deg
peri 92.63197242782017 2.3363e-05 deg
M 334.1505242125938 1.8032e-05 deg
tp 2459144.775903173660
(2020-Oct-22.27590317)		 0.00010047 TDB
period 2009.298972624525
5.50		 3.1088e-05
8.511e-08		 d
yr
n .1791669656456211 2.772e-09 deg/d
Q 3.784456043916943 3.9035e-08 au
   Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      7603 days (20.82 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 23:11:08  

Additional Information
 Earth MOID = 1.59299 au 
 Jupiter MOID = 1.83447 au 
 T_jup = 3.032 
[ 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 15.0   n/a MPO470762  
diameter diameter 4.688 km 0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

259286 (2003 EJ20)          Discovered 2003-Mar-06 by LONEOS at Anderson Mesa
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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