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91806 (1999 TJ244)
Classification: Main-belt Asteroid          SPK-ID: 2091806
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1437722345274393 5.9412e-08  
a 3.111966111175626 2.2172e-08 au
q 2.66455178959824 1.7667e-07 au
i 18.16755482798324 4.7668e-06 deg
node 187.0937346963658 1.3285e-05 deg
peri 352.0365800711364 1.9607e-05 deg
M 104.2449829404422 1.6588e-05 deg
tp 2458419.864777966614
(2018-Oct-28.36477797)
9.0618e-05 TDB
period 2005.167769574508
5.49
2.1429e-05
5.867e-08
d
yr
n .1795360994039871 1.9187e-09 deg/d
Q 3.559380432753011 2.5359e-08 au
  Orbit Determination Parameters
   # obs. used (total)      630  
   data-arc span      7682 days (21.03 yr)  
   first obs. used      1999-10-07  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50728  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:38:26  

Additional Information
 Earth MOID = 1.66848 au 
 Jupiter MOID = 1.40526 au 
 T_jup = 3.126 
[ 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 14.6   n/a MPO474797  

91806 (1999 TJ244)          Discovered 1999-Oct-07 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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Alternate Designations
 1999 TJ244 = 2002 EJ14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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