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91704 (1999 TQ145)
Classification: Main-belt Asteroid          SPK-ID: 2091704
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07772785266564977 3.8116e-08  
a 2.858146881638809 1.8533e-08 au
q 2.635989261926002 1.0775e-07 au
i 2.522593901066973 4.3094e-06 deg
node 156.1478007397683 9.2117e-05 deg
peri 160.120797270583 9.6012e-05 deg
M 147.2185036633749 2.6981e-05 deg
tp 2458278.752745033004
(2018-Jun-09.25274503)
0.00013239 TDB
period 1764.920885096315
4.83
1.7166e-05
4.7e-08
d
yr
n .2039751487106201 1.9839e-09 deg/d
Q 3.080304501351617 1.9973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1102  
   data-arc span      7446 days (20.39 yr)  
   first obs. used      1999-09-09  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53762  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:36:03  

Additional Information
 Earth MOID = 1.62257 au 
 Jupiter MOID = 2.13029 au 
 T_jup = 3.297 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456886.5 (2014-Aug-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07995049439403985 3.8477e-08  
q 2.627543678861839 1.0898e-07 au
tp 2456505.971904179181
(2013-Aug-01.47190418)
0.00012895 TDB
node 156.1871478250023 9.2095e-05 deg
peri 158.3991476745876 9.5714e-05 deg
i 2.521304817354413 4.315e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1102  
   data-arc span      7446 days (20.39 yr)  
   first obs. used      1999-09-09  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53762  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:36:03  

Additional Information
 Jupiter MOID = 2.13029 au 
 T_jup = 3.297 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.480445760618602E-15 -4.143526257706919E-15 2.655400323481722E-13 -1.542422194010762E-15 4.724894229414564E-14 3.414995362619889E-16
q -4.143526257706919E-15 1.187683882845137E-14 -1.091665460656383E-12 5.449650598048066E-15 -1.91731455299469E-13 -7.776300314351224E-16
tp 2.655400323481722E-13 -1.091665460656383E-12 1.662935269399371E-8 -2.201089441466793E-11 3.379948885776687E-9 -8.515439444612631E-13
node -1.542422194010762E-15 5.449650598048066E-15 -2.201089441466793E-11 8.481528466972642E-9 -8.477462885542677E-9 2.905745265120214E-12
peri 4.724894229414564E-14 -1.91731455299469E-13 3.379948885776687E-9 -8.477462885542677E-9 9.161113041861625E-9 -3.069544654618518E-12
i 3.414995362619889E-16 -7.776300314351224E-16 -8.515439444612631E-13 2.905745265120214E-12 -3.069544654618518E-12 1.861927850626396E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO333567  
diameter diameter 5.015 km 0.493 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.111   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91704 (1999 TQ145)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 TQ145 = 2000 YT55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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