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JPL Small-Body Database Browser
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249651 (1999 TH266)
Classification: Main-belt Asteroid          SPK-ID: 2249651
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1839709976215098 7.8069e-08  
a 3.12802424695276 2.5888e-08 au
q 2.552558505656589 2.3986e-07 au
i 16.71561141369911 8.3001e-06 deg
node 216.5748516646415 1.882e-05 deg
peri 198.6069199546004 2.3129e-05 deg
M 161.192711141454 1.3804e-05 deg
tp 2457695.712707872633
(2016-Nov-03.21270787)		 7.2928e-05 TDB
period 2020.708150258821
5.53		 2.5086e-05
6.868e-08		 d
yr
n .1781553659561821 2.2117e-09 deg/d
Q 3.703489988248932 3.0651e-08 au
   Orbit Determination Parameters
   # obs. used (total)      398  
   data-arc span      7213 days (19.75 yr)  
   first obs. used      1999-09-09  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59353  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:55  

Additional Information
 Earth MOID = 1.56787 au 
 Jupiter MOID = 1.71805 au 
 T_jup = 3.123 
[ 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 14.9   n/a MPO437159  

249651 (1999 TH266)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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