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187455 (2005 WD193)
Classification: Main-belt Asteroid          SPK-ID: 2187455
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1670358745380256 6.5941e-08  
a 2.635279720263663 2.3889e-08 au
q 2.195093467537099 1.671e-07 au
i 13.53378921133961 6.9004e-06 deg
node 169.1652115103569 1.9031e-05 deg
peri 185.7771983382833 2.3471e-05 deg
M 236.7418411670545 1.7228e-05 deg
tp 2459735.497413248806
(2022-Jun-04.99741325)		 7.9618e-05 TDB
period 1562.566491282771
4.28		 2.1247e-05
5.817e-08		 d
yr
n .2303901958786164 3.1328e-09 deg/d
Q 3.075465972990227 2.7879e-08 au
   Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      8589 days (23.52 yr)  
   first obs. used      1996-09-10  
   last obs. used      2020-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .544  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:50:46  

Additional Information
 Earth MOID = 1.18871 au 
 Jupiter MOID = 2.36857 au 
 T_jup = 3.339 
[ 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 15.99   n/a E2021B55  
diameter diameter 2.002 km 0.549 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.146   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

187455 (2005 WD193)          Discovered 2005-Nov-26 by CSS at Catalina
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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