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66239 (1999 FK2)
Classification: Main-belt Asteroid          SPK-ID: 2066239
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05304319421021806 4.2949e-08  
a 2.945886543570026 2.2698e-08 au
q 2.789627311518173 1.2489e-07 au
i 11.59250922728446 7.4565e-06 deg
node 352.9250388172161 2.5046e-05 deg
peri 58.48434121433628 7.7465e-05 deg
M 184.9298314286789 7.3621e-05 deg
tp 2459898.615312417635
(2022-Nov-15.11531242)		 0.00037865 TDB
period 1846.810996464151
5.06		 2.1344e-05
5.844e-08		 d
yr
n .1949306131971518 2.2529e-09 deg/d
Q 3.102145775621878 2.3902e-08 au
   Orbit Determination Parameters
   # obs. used (total)      709  
   data-arc span      8234 days (22.54 yr)  
   first obs. used      1996-09-11  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57067  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:11:53  

Additional Information
 Earth MOID = 1.81608 au 
 Jupiter MOID = 2.10326 au 
 T_jup = 3.238 
[ 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 14.5   n/a MPO468587  
diameter diameter 6.156 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66239 (1999 FK2)          Discovered 1999-Mar-16 by Spacewatch at Kitt Peak
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 FK2 = 2001 QY54 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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