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91748 (1999 TA186)
Classification: Main-belt Asteroid          SPK-ID: 2091748
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .119795697181467 6.7699e-08  
a 3.078555365923353 2.4848e-08 au
q 2.709757679550819 2.045e-07 au
i 12.4364772213393 4.9395e-06 deg
node 278.3309027515745 2.8602e-05 deg
peri 235.0995579235816 3.3977e-05 deg
M 240.9740486006259 2.2891e-05 deg
tp 2460048.816014150822
(2023-Apr-14.31601415)
0.00013021 TDB
period 1972.962722275127
5.40
2.3886e-05
6.54e-08
d
yr
n .1824667014412037 2.2091e-09 deg/d
Q 3.447353052295888 2.7824e-08 au
  Orbit Determination Parameters
   # obs. used (total)      972  
   data-arc span      8005 days (21.92 yr)  
   first obs. used      1999-09-08  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4988  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:44  

Additional Information
 Earth MOID = 1.74461 au 
 Jupiter MOID = 1.74198 au 
 T_jup = 3.182 
[ show covariance matrix ]

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 13.9   n/a MPO439645  
diameter diameter 9.336 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91748 (1999 TA186)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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