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91717 (1999 TL155)
Classification: Main-belt Asteroid          SPK-ID: 2091717
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08318442703281016 3.7515e-08  
a 3.046290459579245 2.3928e-08 au
q 2.792886533123629 1.1847e-07 au
i 8.883221687735864 5.0976e-06 deg
node 14.51394730854932 2.7997e-05 deg
peri 260.9550834688834 4.3231e-05 deg
M 63.53322852792361 3.464e-05 deg
tp 2458657.768661702252
(2019-Jun-23.26866170)
0.00018626 TDB
period 1942.02757590008
5.32
2.2881e-05
6.264e-08
d
yr
n .1853732688801544 2.1841e-09 deg/d
Q 3.29969438603486 2.5918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      985  
   data-arc span      7609 days (20.83 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:19:20  

Additional Information
 Earth MOID = 1.79507 au 
 Jupiter MOID = 1.83601 au 
 T_jup = 3.215 
[ 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 14.2   n/a MPO436413  

91717 (1999 TL155)          Discovered 1999-Oct-07 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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