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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1547176334549774 3.2574e-08  
a 2.391643179845865 9.3736e-09 au
q 2.021613806991376 7.9451e-08 au
i 5.875651697183227 3.5572e-06 deg
node 82.15128956331468 3.425e-05 deg
peri 15.24558513932688 3.6146e-05 deg
M 342.9377888821257 1.2361e-05 deg
tp 2459064.528866872707
(2020-Aug-03.02886687)
4.6567e-05 TDB
period 1350.961602510406
3.70
7.9423e-06
2.174e-08
d
yr
n .2664768556937776 1.5666e-09 deg/d
Q 2.761672552700353 1.0824e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1168  
   data-arc span      7608 days (20.83 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:27:51  

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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