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201789 (2003 WK135)
Classification: Main-belt Asteroid          SPK-ID: 2201789
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0875162984648986 3.9806e-08  
a 3.082178573556251 2.7555e-08 au
q 2.812437713590787 1.338e-07 au
i 11.5591560570878 6.3719e-06 deg
node 75.80941685686643 3.0369e-05 deg
peri 45.43459220222187 6.7508e-05 deg
M 333.5723265639162 5.7741e-05 deg
tp 2459145.591360580427
(2020-Oct-23.09136058)
0.00031734 TDB
period 1976.44677028724
5.41
2.6504e-05
7.256e-08
d
yr
n .1821450521268936 2.4426e-09 deg/d
Q 3.351919433521715 2.9966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      7449 days (20.39 yr)  
   first obs. used      2000-05-05  
   last obs. used      2020-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5594  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:03:43  

Additional Information
 Earth MOID = 1.84238 au 
 Jupiter MOID = 1.84275 au 
 T_jup = 3.190 
[ 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 15.0   n/a MPO503056  
diameter diameter 3.296 km 1.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.178   0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201789 (2003 WK135)          Discovered 2003-Nov-21 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

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