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91754 (1999 TO189)
Classification: Main-belt Asteroid          SPK-ID: 2091754
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07576648618117188 7.2889e-08  
a 3.119369893962554 2.8391e-08 au
q 2.883026197997676 2.3871e-07 au
i 11.89407073858343 7.2536e-06 deg
node 347.9671961346223 2.1523e-05 deg
peri 12.0820604710006 3.678e-05 deg
M 298.8762815039562 3.1661e-05 deg
tp 2459342.169339024484
(2021-May-07.66933902)
0.00017902 TDB
period 2012.327866747428
5.51
2.7473e-05
7.522e-08
d
yr
n .178897289029683 2.4423e-09 deg/d
Q 3.355713589927432 3.0542e-08 au
  Orbit Determination Parameters
   # obs. used (total)      755  
   data-arc span      7553 days (20.68 yr)  
   first obs. used      1999-10-12  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5027  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:41:17  

Additional Information
 Earth MOID = 1.87986 au 
 Jupiter MOID = 2.07736 au 
 T_jup = 3.179 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO348076  
diameter diameter 5.042 km 0.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.174   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91754 (1999 TO189)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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