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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07405248239294776 6.7075e-08  
a 3.114158963260989 2.5908e-08 au
q 2.883547761465263 2.2356e-07 au
i 11.90968327542156 5.6916e-06 deg
node 347.9170469261102 1.9268e-05 deg
peri 12.36091156676989 3.5272e-05 deg
M 9.513903963280704 3.1125e-05 deg
tp 2459343.452385907298
(2021-May-08.95238591)
0.0001733 TDB
period 2007.28756008878
5.50
2.505e-05
6.858e-08
d
yr
n .1793465007993561 2.2381e-09 deg/d
Q 3.344770165056714 2.7827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      855  
   data-arc span      7971 days (21.82 yr)  
   first obs. used      1999-10-12  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:45  

Additional Information
 Earth MOID = 1.87962 au 
 Jupiter MOID = 2.08674 au 
 T_jup = 3.181 
[ 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 14.33   n/a E2021B10  
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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