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91779 (1999 TL208)
Classification: Main-belt Asteroid          SPK-ID: 2091779
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09150621574920012 4.0869e-08  
a 3.103200932476145 2.6878e-08 au
q 2.819238758435864 1.3555e-07 au
i 15.87891264390966 6.9293e-06 deg
node 348.7481206370934 1.5304e-05 deg
peri 80.74512950493252 4.6986e-05 deg
M 250.5317203477506 4.2712e-05 deg
tp 2459607.654285454647
(2022-Jan-28.15428545)
0.00023783 TDB
period 1996.702089938997
5.47
2.5942e-05
7.103e-08
d
yr
n .1802973021433552 2.3425e-09 deg/d
Q 3.387163106516426 2.9338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      9840 days (26.94 yr)  
   first obs. used      1993-08-20  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55834  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:19:40  

Additional Information
 Earth MOID = 1.88613 au 
 Jupiter MOID = 1.90909 au 
 T_jup = 3.156 
[ 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 14.1   n/a MPO436413  
diameter diameter 8.966 km 1.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.055   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91779 (1999 TL208)          Discovered 1999-Oct-14 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TL208 = 1993 QO6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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