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392751 (2012 TD9)
Classification: Main-belt Asteroid          SPK-ID: 2392751
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218358045309637 6.142e-08  
a 2.261169300729875 1.4919e-08 au
q 1.985677919794734 1.3292e-07 au
i 6.940707105049827 5.1679e-06 deg
node 194.5394284210924 4.3422e-05 deg
peri 205.6449598903172 4.8254e-05 deg
M 73.80569601569172 2.0611e-05 deg
tp 2458745.884154816777
(2019-Sep-19.38415482)
7.0393e-05 TDB
period 1241.932658510152
3.40
1.2291e-05
3.365e-08
d
yr
n .2898707893162769 2.8688e-09 deg/d
Q 2.536660681665016 1.6737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5249 days (14.37 yr)  
   first obs. used      2005-09-12  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:45:56  

Additional Information
 Earth MOID = .995286 au 
 Jupiter MOID = 2.8573 au 
 T_jup = 3.600 
[ 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 17.6   n/a MPO455787  

392751 (2012 TD9)          Discovered 2005-Sep-12 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

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