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91746 (1999 TL185)
Classification: Main-belt Asteroid          SPK-ID: 2091746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2273515030699329 4.5441e-08  
a 3.012912831088961 1.6727e-08 au
q 2.327922570322199 1.3752e-07 au
i 13.44256632645529 6.21e-06 deg
node 346.9862632603103 1.48e-05 deg
peri 154.2600214095469 1.8781e-05 deg
M 241.1360727247403 1.1008e-05 deg
tp 2459631.204386968103
(2022-Feb-20.70438697)
6.0622e-05 TDB
period 1910.197521765512
5.23
1.5908e-05
4.355e-08
d
yr
n .1884621856630134 1.5695e-09 deg/d
Q 3.697903091855723 2.053e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1367  
   data-arc span      16670 days (45.64 yr)  
   first obs. used      1975-03-06  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:38:40  

Additional Information
 Earth MOID = 1.34739 au 
 Jupiter MOID = 1.34095 au 
 T_jup = 3.168 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457353.5 (2015-Nov-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .225730215114044 4.6101e-08  
q 2.334773223907213 1.3972e-07 au
tp 2457721.942524192108
(2016-Nov-29.44252419)
5.5619e-05 TDB
node 347.0843705168732 1.4774e-05 deg
peri 154.5279389968759 1.8767e-05 deg
i 13.44682330640485 6.2127e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1367  
   data-arc span      16670 days (45.64 yr)  
   first obs. used      1975-03-06  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:38:40  

Additional Information
 Jupiter MOID = 1.34095 au 
 T_jup = 3.168 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.125292225395902E-15 -6.413460122240721E-15 1.61675646188915E-12 -3.081658475867767E-15 3.57089244810481E-13 -3.508226544254825E-15
q -6.413460122240721E-15 1.952291345128848E-14 -4.739401074867045E-12 1.535518910694274E-14 -1.063809157985453E-12 1.454694934131244E-14
tp 1.61675646188915E-12 -4.739401074867045E-12 3.093446713590605E-9 -2.960975516761091E-12 6.521047349689439E-10 -9.721847130411347E-13
node -3.081658475867767E-15 1.535518910694274E-14 -2.960975516761091E-12 2.18282231519364E-10 -2.125802178984777E-10 3.231675767486991E-11
peri 3.57089244810481E-13 -1.063809157985453E-12 6.521047349689439E-10 -2.125802178984777E-10 3.52186084256958E-10 -3.169885786238799E-11
i -3.508226544254825E-15 1.454694934131244E-14 -9.721847130411347E-13 3.231675767486991E-11 -3.169885786238799E-11 3.859716403559576E-11

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 MPO412708  
diameter diameter 7.851 km 1.888 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.093   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

91746 (1999 TL185)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TL185 = 1975 EL4 = 1975 EO1 = 2001 BG10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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