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249323 (2008 UJ225)
Classification: Main-belt Asteroid          SPK-ID: 2249323
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06459090409846301 5.7759e-08  
a 3.102908544286643 3.6132e-08 au
q 2.902488876076323 1.921e-07 au
i 11.42256509614048 7.3066e-06 deg
node 261.5208170067405 2.9979e-05 deg
peri 222.6336657103714 7.3468e-05 deg
M 341.252432311594 6.3952e-05 deg
tp 2459104.466714379955
(2020-Sep-11.96671438)
0.00035483 TDB
period 1996.419898242602
5.47
3.4871e-05
9.547e-08
d
yr
n .180322786963253 3.1497e-09 deg/d
Q 3.303328212496962 3.8466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      7617 days (20.85 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47804  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:22:01  

Additional Information
 Earth MOID = 1.93001 au 
 Jupiter MOID = 1.89613 au 
 T_jup = 3.188 
[ 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 15.3   n/a MPO413152  
diameter diameter 5.745 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249323 (2008 UJ225)          Discovered 2008-Oct-25 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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