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91830 (1999 TF297)
Classification: Main-belt Asteroid          SPK-ID: 2091830
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017401853377153 5.3645e-08  
a 2.895671400661133 1.9355e-08 au
q 2.601065255680747 1.533e-07 au
i 2.923137882543842 3.8705e-06 deg
node 105.5335267597397 0.00011233 deg
peri 98.39846516562562 0.00011385 deg
M 238.1679102988799 2.0864e-05 deg
tp 2459609.590091705179
(2022-Jan-30.09009171)
0.00010759 TDB
period 1799.79210363859
4.93
1.8045e-05
4.94e-08
d
yr
n .200023102263977 2.0055e-09 deg/d
Q 3.190277545641518 2.1324e-08 au
  Orbit Determination Parameters
   # obs. used (total)      777  
   data-arc span      15682 days (42.93 yr)  
   first obs. used      1977-02-18  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57857  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:37:48  

Additional Information
 Earth MOID = 1.59932 au 
 Jupiter MOID = 1.77066 au 
 T_jup = 3.279 
[ 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 14.8   n/a MPO351491  

91830 (1999 TF297)          Discovered 1999-Oct-02 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TF297 = 1977 DT3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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