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91809 (1999 TG248)
Classification: Main-belt Asteroid          SPK-ID: 2091809
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0812538446676043 3.7746e-08  
a 3.069122424998078 2.0255e-08 au
q 2.819744428211423 1.2427e-07 au
i 9.601598687819704 5.2793e-06 deg
node 186.2093636165873 1.8834e-05 deg
peri 235.3641920216299 3.881e-05 deg
M 322.092282307575 3.21e-05 deg
tp 2459407.297308699071
(2021-Jul-11.79730870)
0.00017503 TDB
period 1963.901697688915
5.38
1.9442e-05
5.323e-08
d
yr
n .1833085639793691 1.8147e-09 deg/d
Q 3.318500421784733 2.1901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      7798 days (21.35 yr)  
   first obs. used      1999-10-08  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50613  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:47:51  

Additional Information
 Earth MOID = 1.84387 au 
 Jupiter MOID = 2.00879 au 
 T_jup = 3.205 
[ 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 14.51   n/a E2021B10  

91809 (1999 TG248)          Discovered 1999-Oct-08 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TG248 = 2001 FT162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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