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91335 (1999 JT9)
Classification: Main-belt Asteroid          SPK-ID: 2091335
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .154717633563117 3.257e-08  
a 2.391643179567971 9.3695e-09 au
q 2.021613806497845 7.9437e-08 au
i 5.875651657329757 3.557e-06 deg
node 82.15128954325843 3.4246e-05 deg
peri 15.24558498753974 3.6141e-05 deg
M 342.9377891621311 1.2356e-05 deg
tp 2459064.528865810779
(2020-Aug-03.02886581)
4.6549e-05 TDB
period 1350.961602274946
3.70
7.9388e-06
2.174e-08
d
yr
n .266476855740222 1.5659e-09 deg/d
Q 2.761672552638097 1.0819e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1173  
   data-arc span      7854 days (21.50 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:16:47  

Additional Information
 Earth MOID = 1.03908 au 
 Jupiter MOID = 2.40307 au 
 T_jup = 3.508 
[ 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 15.0   n/a MPO453353  

91335 (1999 JT9)          Discovered 1999-May-08 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 JT9 = 2001 TK106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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