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266127 (2006 TR21)
Classification: Main-belt Asteroid          SPK-ID: 2266127
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1407041124964374 6.7852e-08  
a 2.342368932815694 1.7482e-08 au
q 2.012787990984635 1.6721e-07 au
i 1.891531475060154 8.9641e-06 deg
node 193.993845908361 0.00017169 deg
peri 244.5132122813611 0.00017676 deg
M 255.4623755093356 4.7178e-05 deg
tp 2459380.734484830179
(2021-Jun-15.23448483)
0.0001747 TDB
period 1309.42725364004
3.59
1.4659e-05
4.013e-08
d
yr
n .2749293624363218 3.0778e-09 deg/d
Q 2.671949874646753 1.9941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      8625 days (23.61 yr)  
   first obs. used      1997-03-10  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68413  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:27:34  

Additional Information
 Earth MOID = 1.02913 au 
 Jupiter MOID = 2.55291 au 
 T_jup = 3.549 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457240.5 (2015-Aug-06.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1416848383064404 6.8583e-08  
q 2.009753568707958 1.6933e-07 au
tp 2456760.240419432330
(2014-Apr-12.74041943)
0.00015208 TDB
node 194.1164774646138 0.00017155 deg
peri 243.902384696363 0.00017652 deg
i 1.8922034310708 8.9705e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      8625 days (23.61 yr)  
   first obs. used      1997-03-10  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68413  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:27:34  

Additional Information
 Jupiter MOID = 2.55291 au 
 T_jup = 3.549 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.703648696744485E-15 -1.158042117409765E-14 -6.205064224682081E-12 -7.795127373422679E-16 -1.614114366922663E-12 -9.10339825448663E-16
q -1.158042117409765E-14 2.867395844285496E-14 1.606313161528723E-11 4.463426770398943E-15 4.198789978814792E-12 2.512668681997716E-15
tp -6.205064224682081E-12 1.606313161528723E-11 2.312979525117956E-8 1.96477342764225E-11 6.347050965693148E-9 3.554767728830251E-12
node -7.795127373422679E-16 4.463426770398943E-15 1.96477342764225E-11 2.942789576663976E-8 -2.940478879337517E-8 -1.090344385735838E-10
peri -1.614114366922663E-12 4.198789978814792E-12 6.347050965693148E-9 -2.940478879337517E-8 3.116083152146995E-8 1.099716564295566E-10
i -9.10339825448663E-16 2.512668681997716E-15 3.554767728830251E-12 -1.090344385735838E-10 1.099716564295566E-10 8.047008957545324E-11

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 17.8   n/a MPO191317  

266127 (2006 TR21)          Discovered 2006-Oct-11 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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