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JPL Small-Body Database Browser
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91817 (1999 TG267)
Classification: Main-belt Asteroid          SPK-ID: 2091817
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07569389036961149 5.3806e-08  
a 2.73566794237874 1.8263e-08 au
q 2.528594593060663 1.4902e-07 au
i 10.12297640368108 6.8053e-06 deg
node 321.1180425037129 2.7808e-05 deg
peri 149.245597291165 5.6912e-05 deg
M 110.8349342181462 4.5932e-05 deg
tp 2458491.675908553895
(2019-Jan-08.17590855)
0.00021118 TDB
period 1652.697989246495
4.52
1.655e-05
4.531e-08
d
yr
n .2178256416734268 2.1813e-09 deg/d
Q 2.942741291696817 1.9645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      637  
   data-arc span      7155 days (19.59 yr)  
   first obs. used      1999-09-29  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55297  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:42:48  

Additional Information
 Earth MOID = 1.55019 au 
 Jupiter MOID = 2.1316 au 
 T_jup = 3.326 
[ 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 14.9   n/a MPO468904  
diameter diameter 2.762 km 0.345 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.254   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91817 (1999 TG267)          Discovered 1999-Oct-03 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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