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91666 (1999 TF111)
Classification: Main-belt Asteroid          SPK-ID: 2091666
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09451851315963943 5.4888e-08  
a 2.793819023708159 2.0295e-08 au
q 2.529751403550148 1.5179e-07 au
i 8.488255298374348 5.1247e-06 deg
node 241.8862326875104 3.3708e-05 deg
peri 162.3156245148876 4.4307e-05 deg
M 120.2333447421945 2.7435e-05 deg
tp 2458430.836675219142
(2018-Nov-08.33667522)
0.00012931 TDB
period 1705.673225350594
4.67
1.8586e-05
5.089e-08
d
yr
n .2110603570774839 2.2998e-09 deg/d
Q 3.05788664386617 2.2213e-08 au
  Orbit Determination Parameters
   # obs. used (total)      608  
   data-arc span      7441 days (20.37 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:35:43  

Additional Information
 Earth MOID = 1.54078 au 
 Jupiter MOID = 2.2988 au 
 T_jup = 3.305 
[ 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 15.1   n/a MPO412707  
diameter diameter 3.384 km 0.527 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.185   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91666 (1999 TF111)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TF111 = 2000 YT102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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