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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09900661701579319 5.9232e-08  
a 2.393356707342842 1.4007e-08 au
q 2.15639855643677 1.3896e-07 au
i 3.330573852355456 6.8285e-06 deg
node 1.895677488194503 7.748e-05 deg
peri 216.1881200520645 8.2397e-05 deg
M 208.5670265548186 2.6648e-05 deg
tp 2459569.388981849767
(2021-Dec-20.88898185)
0.00010076 TDB
period 1352.413736629517
3.70
1.1872e-05
3.25e-08
d
yr
n .266190730136468 2.3367e-09 deg/d
Q 2.630314858248915 1.5393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      322  
   data-arc span      8060 days (22.07 yr)  
   first obs. used      1997-10-02  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61206  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 14:14:37  

Additional Information
 Earth MOID = 1.15006 au 
 Jupiter MOID = 2.34242 au 
 T_jup = 3.522 
[ 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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