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102491 (1999 TK264)
Classification: Main-belt Asteroid          SPK-ID: 2102491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596214089096349 4.0662e-08  
a 2.397534425138875 8.9323e-09 au
q 2.014836602288857 9.4135e-08 au
i 4.378597926261793 3.976e-06 deg
node 203.9387715128505 4.1465e-05 deg
peri .6177832985317092 4.2891e-05 deg
M 82.23727357036863 9.8333e-06 deg
tp 2458890.749577567873
(2020-Feb-11.24957757)
3.702e-05 TDB
period 1355.956335057107
3.71
7.5776e-06
2.075e-08
d
yr
n .2654952749528164 1.4837e-09 deg/d
Q 2.780232247988894 1.0358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      617  
   data-arc span      7608 days (20.83 yr)  
   first obs. used      1999-10-15  
   last obs. used      2020-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:54:28  

Additional Information
 Earth MOID = 1.01016 au 
 Jupiter MOID = 2.17871 au 
 T_jup = 3.507 
[ 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 16.56   n/a E2021B55  
diameter diameter 3.457 km 0.664 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.031   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102491 (1999 TK264)          Discovered 1999-Oct-15 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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