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233876 (2008 WB61)
Classification: Outer Main-belt Asteroid          SPK-ID: 2233876
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06966773311741967 4.9227e-08  
a 3.21610808106279 4.3151e-08 au
q 2.99204912159453 1.6303e-07 au
i 5.844443187525496 5.0564e-06 deg
node 71.11707051767415 5.571e-05 deg
peri 75.71267846267369 6.8416e-05 deg
M 274.3949448600644 4.2026e-05 deg
tp 2459501.446435119107
(2021-Oct-13.94643512)
0.00025055 TDB
period 2106.659663358454
5.77
4.2398e-05
1.161e-07
d
yr
n .1708866440372647 3.4392e-09 deg/d
Q 3.440167040531048 4.6157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      303  
   data-arc span      5885 days (16.11 yr)  
   first obs. used      2003-12-17  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:25:05  

Additional Information
 Earth MOID = 2.01108 au 
 Jupiter MOID = 1.58682 au 
 T_jup = 3.178 
[ 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 15.2   n/a MPO454692  
diameter diameter 3.746 km 0.475 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.095   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233876 (2008 WB61)          Discovered 2008-Nov-21 by LINEAR at Socorro
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

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