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70455 (1999 TM20)
Classification: Main-belt Asteroid          SPK-ID: 2070455
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1495098778642878 3.2208e-08  
a 2.620267327527491 1.0223e-08 au
q 2.228511479417072 8.4276e-08 au
i 3.777021758578885 4.9081e-06 deg
node 6.288909222391589 4.3898e-05 deg
peri 295.2924781066455 4.6957e-05 deg
M 10.44221971229908 1.5113e-05 deg
tp 2458955.562681320300
(2020-Apr-16.06268132)
6.5098e-05 TDB
period 1549.233321114479
4.24
9.0669e-06
2.482e-08
d
yr
n .232373003532499 1.36e-09 deg/d
Q 3.01202317563791 1.1752e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      8702 days (23.82 yr)  
   first obs. used      1997-01-10  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:05:33  

Additional Information
 Earth MOID = 1.21639 au 
 Jupiter MOID = 2.21703 au 
 T_jup = 3.386 
[ 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 15.4   n/a MPO436274  

70455 (1999 TM20)          Discovered 1999-Oct-05 by Tucker, R. A. at Goodricke-Pigott
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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