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120734 (1997 TH9)
Classification: Main-belt Asteroid          SPK-ID: 2120734
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09883900645132432 4.8997e-08  
a 2.393716968229012 1.2366e-08 au
q 2.157124361363581 1.1767e-07 au
i 3.330518746471964 5.885e-06 deg
node 1.889509948614119 7.5199e-05 deg
peri 216.154266060786 7.945e-05 deg
M 261.8292750136071 2.5839e-05 deg
tp 2459569.381709540073
(2021-Dec-20.88170954)
9.7921e-05 TDB
period 1352.719106972399
3.70
1.0482e-05
2.87e-08
d
yr
n .2661306387589492 2.0623e-09 deg/d
Q 2.630309575094444 1.3588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      8509 days (23.30 yr)  
   first obs. used      1997-10-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58861  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:48  

Additional Information
 Earth MOID = 1.14972 au 
 Jupiter MOID = 2.34124 au 
 T_jup = 3.521 
[ 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 16.6   n/a MPO493689  

120734 (1997 TH9)          Discovered 1997-Oct-02 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1997 TH9 = 2003 GJ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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