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91366 (1999 JT84)
Classification: Main-belt Asteroid          SPK-ID: 2091366
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3495706966578941 4.2109e-08  
a 2.693238776013937 1.4759e-08 au
q 1.751761420816691 1.099e-07 au
i 17.8027040900666 5.4228e-06 deg
node 106.2191777982275 1.6766e-05 deg
peri 165.9554767259805 1.9391e-05 deg
M 261.1147673170597 1.2954e-05 deg
tp 2459443.944889092946
(2021-Aug-17.44488909)
6.0941e-05 TDB
period 1614.398386312356
4.42
1.327e-05
3.633e-08
d
yr
n .2229932853329468 1.833e-09 deg/d
Q 3.634716131211183 1.9918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      630  
   data-arc span      7572 days (20.73 yr)  
   first obs. used      1999-05-12  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58456  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:28:33  

Additional Information
 Earth MOID = .739833 au 
 Jupiter MOID = 1.54632 au 
 T_jup = 3.216 
[ 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 14.9   n/a MPO233921  

91366 (1999 JT84)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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