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227309 (2005 TN20)
Classification: Main-belt Asteroid          SPK-ID: 2227309
[ 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1632611049844212 5.5381e-08  
a 2.421908704136914 1.4461e-08 au
q 2.026505212928134 1.374e-07 au
i 1.869414056252298 6.666e-06 deg
node 333.5773705990683 0.00017673 deg
peri 130.5050499015601 0.00017818 deg
M 294.4697368509565 2.2004e-05 deg
tp 2459451.096205165275
(2021-Aug-24.59620517)		 8.499e-05 TDB
period 1376.686579974704
3.77		 1.233e-05
3.376e-08		 d
yr
n .2614974281267526 2.342e-09 deg/d
Q 2.817312195345695 1.6821e-08 au
   Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      6973 days (19.09 yr)  
   first obs. used      2001-09-18  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5501  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:27:45  

Additional Information
 Earth MOID = 1.0438 au 
 Jupiter MOID = 2.31561 au 
 T_jup = 3.494 
[ 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 17.5   n/a MPO437077  

227309 (2005 TN20)          Discovered 2005-Oct-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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