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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1816700594462984 7.761e-08  
a 3.134116442345541 2.5974e-08 au
q 2.564741321953006 2.3845e-07 au
i 16.6750218237389 8.2723e-06 deg
node 216.4709366485343 1.8274e-05 deg
peri 198.6220145310364 2.2495e-05 deg
M 232.3935518435704 1.422e-05 deg
tp 2459718.858505740030
(2022-May-19.35850574)
8.5285e-05 TDB
period 2026.614374137177
5.55
2.5194e-05
6.898e-08
d
yr
n .1776361623573643 2.2083e-09 deg/d
Q 3.703491562738077 3.0693e-08 au
  Orbit Determination Parameters
   # obs. used (total)      409  
   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      .59575  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:25:56  

Additional Information
 Earth MOID = 1.58046 au 
 Jupiter MOID = 1.71999 au 
 T_jup = 3.122 
[ 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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