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187918 (2000 WD108)
Classification: Main-belt Asteroid          SPK-ID: 2187918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2190966969145005 5.3353e-08  
a 3.190386725377142 3.1154e-08 au
q 2.49138353196714 1.7192e-07 au
i 16.7789696431077 7.3142e-06 deg
node 46.15486945733283 1.4825e-05 deg
peri 36.043939545838 1.9679e-05 deg
M 179.0595449352466 1.3829e-05 deg
tp 2458165.218634638159
(2018-Feb-15.71863464)
7.3456e-05 TDB
period 2081.437723216838
5.70
3.0488e-05
8.347e-08
d
yr
n .1729573726777778 2.5334e-09 deg/d
Q 3.889389918787144 3.798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      412  
   data-arc span      7202 days (19.72 yr)  
   first obs. used      2000-10-25  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55219  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:46:07  

Additional Information
 Earth MOID = 1.52522 au 
 Jupiter MOID = 1.58636 au 
 T_jup = 3.094 
[ 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 15.41   n/a E2021B55  
diameter diameter 6.903 km 0.423 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)  

187918 (2000 WD108)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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