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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457164.5 (2015-May-22.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1534266154613778 3.2467e-08  
q 2.02524520456216 7.911e-08 au
tp 2457712.429215716438
(2016-Nov-19.92921572)
4.3921e-05 TDB
node 82.18993448263322 3.4289e-05 deg
peri 15.01738243155855 3.6231e-05 deg
i 5.872237307414361 3.5541e-06 deg
  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
 Jupiter MOID = 2.40307 au 
 T_jup = 3.508 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.054129747567348E-15 -2.555682812277306E-15 3.162028353622559E-14 3.711041020446772E-15 2.778464124656712E-14 -7.051584710088078E-16
q -2.555682812277306E-15 6.258414161933158E-15 4.163265513260166E-14 -8.304326123773799E-15 -4.326741760075481E-14 2.017560112116991E-15
tp 3.162028353622559E-14 4.163265513260166E-14 1.929088911393756E-9 5.742627908411602E-12 5.229454888528851E-10 1.889997147794174E-12
node 3.711041020446772E-15 -8.304326123773799E-15 5.742627908411602E-12 1.175703301707557E-9 -1.167673769852422E-9 3.911472391889723E-12
peri 2.778464124656712E-14 -4.326741760075481E-14 5.229454888528851E-10 -1.167673769852422E-9 1.312682369970757E-9 -3.421724536605464E-12
i -7.051584710088078E-16 2.017560112116991E-15 1.889997147794174E-12 3.911472391889723E-12 -3.421724536605464E-12 1.263137621048522E-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 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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