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266897 (2009 WK104)
Classification: Main-belt Asteroid          SPK-ID: 2266897
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2299094039631555 5.4411e-08  
a 3.136812892745952 6.2481e-08 au
q 2.415630110230789 1.6689e-07 au
i 26.75936778755422 1.0195e-05 deg
node 82.50858626198909 1.406e-05 deg
peri 74.13334465221834 2.8568e-05 deg
M 251.1517289536599 2.4453e-05 deg
tp 2459614.050596446417
(2022-Feb-03.55059645)
0.00014849 TDB
period 2029.230346035311
5.56
6.0629e-05
1.66e-07
d
yr
n .1774071636092789 5.3005e-09 deg/d
Q 3.857995675261116 7.6845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      241  
   data-arc span      6741 days (18.46 yr)  
   first obs. used      2000-03-04  
   last obs. used      2018-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54996  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 10:15:25  

Additional Information
 Earth MOID = 1.56734 au 
 Jupiter MOID = 1.86506 au 
 T_jup = 3.008 
[ 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 MPO413195  
diameter diameter 5.765 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266897 (2009 WK104)          Discovered 2009-Nov-18 by La Sagra at La Sagra
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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