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JPL Small-Body Database Browser
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74865 (1999 TG91)
Classification: Main-belt Asteroid          SPK-ID: 2074865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1359514043276513 5.3559e-08  
a 2.30472589213305 1.171e-08 au
q 1.991395170507263 1.2635e-07 au
i 3.808855217176385 5.0894e-06 deg
node 143.7854030393821 7.3142e-05 deg
peri 119.4053285024008 7.8776e-05 deg
M 302.4483705071494 3.3424e-05 deg
tp 2458804.806635519079
(2019-Nov-17.30663552)
0.00011917 TDB
period 1277.989683958563
3.50
9.7396e-06
2.667e-08
d
yr
n .2816924146718483 2.1468e-09 deg/d
Q 2.618056613758837 1.3302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      720  
   data-arc span      8176 days (22.38 yr)  
   first obs. used      1997-01-10  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57592  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:07:58  

Additional Information
 Earth MOID = .978678 au 
 Jupiter MOID = 2.44829 au 
 T_jup = 3.573 
[ 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 15.9   n/a MPO432301  

74865 (1999 TG91)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TG91 = 1998 FY120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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