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118930 (2000 WB8)
Classification: Main-belt Asteroid          SPK-ID: 2118930
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .106225494088562 3.9602e-08  
a 3.026794223256365 2.2508e-08 au
q 2.705271511386552 1.2996e-07 au
i 9.225690946088248 4.7701e-06 deg
node 104.6879733416348 2.4986e-05 deg
peri 301.7335412870697 3.7172e-05 deg
M 303.472623747715 2.9876e-05 deg
tp 2459502.515407048143
(2021-Oct-15.01540705)
0.00016164 TDB
period 1923.413994169534
5.27
2.1455e-05
5.874e-08
d
yr
n .1871671939017143 2.0878e-09 deg/d
Q 3.348316935126177 2.4899e-08 au
  Orbit Determination Parameters
   # obs. used (total)      514  
   data-arc span      8098 days (22.17 yr)  
   first obs. used      1998-07-15  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:07:57  

Additional Information
 Earth MOID = 1.72888 au 
 Jupiter MOID = 2.01088 au 
 T_jup = 3.216 
[ 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 15.14   n/a E2021B55  
diameter diameter 6.290 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118930 (2000 WB8)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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