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91643 (1999 TX91)
Classification: Main-belt Asteroid          SPK-ID: 2091643
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06080664337521157 3.8676e-08  
a 2.978271882578492 2.1839e-08 au
q 2.797173166340122 1.1621e-07 au
i 11.76458108178998 4.5469e-06 deg
node 48.00546374850772 2.1418e-05 deg
peri 201.5174562255173 4.4433e-05 deg
M 117.345122662741 3.9042e-05 deg
tp 2458388.561917253878
(2018-Sep-27.06191725)
0.00020399 TDB
period 1877.348668523332
5.14
2.0649e-05
5.653e-08
d
yr
n .1917597972267802 2.1092e-09 deg/d
Q 3.159370598816862 2.3167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1290  
   data-arc span      7684 days (21.04 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53811  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:17:12  

Additional Information
 Earth MOID = 1.78738 au 
 Jupiter MOID = 1.84717 au 
 T_jup = 3.226 
[ 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 13.7   n/a MPO359384  

91643 (1999 TX91)          Discovered 1999-Oct-02 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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