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JPL Small-Body Database Browser
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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07576650260216332 8.407e-08  
a 3.119369896238559 3.0479e-08 au
q 2.88302614887809 2.6769e-07 au
i 11.89408022489152 9.0114e-06 deg
node 347.9672059365382 2.2657e-05 deg
peri 12.08205358486644 3.829e-05 deg
M 298.8762778390633 3.3143e-05 deg
tp 2459342.169359884442
(2021-May-07.66935988)
0.00018765 TDB
period 2012.327868949829
5.51
2.9494e-05
8.075e-08
d
yr
n .1788972888338881 2.622e-09 deg/d
Q 3.355713643599028 3.2788e-08 au
  Orbit Determination Parameters
   # obs. used (total)      727  
   data-arc span      7174 days (19.64 yr)  
   first obs. used      1999-10-12  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53259  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:04:21  

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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