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266892 (2009 WL50)
Classification: Main-belt Asteroid          SPK-ID: 2266892
[ 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 .08852184637372375 5.7847e-08  
a 2.976690200741345 3.3942e-08 au
q 2.713188088089151 1.7311e-07 au
i 10.96078904712146 4.8577e-06 deg
node 90.04722728914454 3.2309e-05 deg
peri 292.9022419730539 4.2993e-05 deg
M 37.98418187230844 2.6048e-05 deg
tp 2458802.575680932493
(2019-Nov-15.07568093)		 0.00013636 TDB
period 1875.853351372243
5.14		 3.2085e-05
8.784e-08		 d
yr
n .1919126565712875 3.2825e-09 deg/d
Q 3.24019231339354 3.6947e-08 au
   Orbit Determination Parameters
   # obs. used (total)      332  
   data-arc span      8276 days (22.66 yr)  
   first obs. used      1997-05-31  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59526  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:50:28  

Additional Information
 Earth MOID = 1.74111 au 
 Jupiter MOID = 2.18968 au 
 T_jup = 3.227 
[ 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 15.5   n/a MPO454983  
diameter diameter 2.911 km 0.465 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.132   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266892 (2009 WL50)          Discovered 2009-Nov-19 by La Sagra at La Sagra
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 WL50 = 1997 KJ4 = 2007 HF55 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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