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233871 (2008 WQ23)
Classification: Main-belt Asteroid          SPK-ID: 2233871
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06597082235233748 5.3911e-08  
a 2.70940602937821 2.5743e-08 au
q 2.530664285533748 1.503e-07 au
i 3.956051674570735 5.0494e-06 deg
node 286.4589316006983 8.8366e-05 deg
peri 46.97994217725361 9.7136e-05 deg
M 198.4325858821016 4.2223e-05 deg
tp 2459331.573159626664
(2021-Apr-27.07315963)
0.00019473 TDB
period 1628.95679739943
4.46
2.3216e-05
6.356e-08
d
yr
n .2210003362733296 3.1497e-09 deg/d
Q 2.888147773222671 2.7442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      5679 days (15.55 yr)  
   first obs. used      2003-09-16  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56373  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:34:56  

Additional Information
 Earth MOID = 1.52105 au 
 Jupiter MOID = 2.34891 au 
 T_jup = 3.357 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO437098  
diameter diameter 3.965 km 1.641 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233871 (2008 WQ23)          Discovered 2008-Nov-18 by CSS at Catalina
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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