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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 ]

[ 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 .07439519525138197 4.5805e-08  
a 2.739065133118997 1.6436e-08 au
q 2.535291847734357 1.2392e-07 au
i 10.12356404000669 5.8171e-06 deg
node 321.1099328809241 2.5605e-05 deg
peri 149.6117493541132 4.5743e-05 deg
M 196.6582517835924 3.7609e-05 deg
tp 2460147.771069383625
(2023-Jul-22.27106938)
0.00017525 TDB
period 1655.777460026828
4.53
1.4903e-05
4.08e-08
d
yr
n .2174205221963627 1.9569e-09 deg/d
Q 2.942838418503638 1.7658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      779  
   data-arc span      7985 days (21.86 yr)  
   first obs. used      1999-09-29  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54246  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:48  

Additional Information
 Earth MOID = 1.55715 au 
 Jupiter MOID = 2.12912 au 
 T_jup = 3.324 
[ 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 14.89   n/a MPO637246  
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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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