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58269 (1993 TG20)
Classification: Main-belt Asteroid          SPK-ID: 2058269
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2156287411546725 3.6958e-08  
a 2.388326950017712 7.9563e-09 au
q 1.873335016319615 8.7577e-08 au
i 2.964768198798488 3.371e-06 deg
node 55.56650334533772 7.0759e-05 deg
peri 287.2650435852132 7.1097e-05 deg
M 155.1222700574809 7.6446e-06 deg
tp 2458619.587466672146
(2019-May-16.08746667)
2.7522e-05 TDB
period 1348.152730878259
3.69
6.7367e-06
1.844e-08
d
yr
n .2670320593168081 1.3344e-09 deg/d
Q 2.90331888371581 9.6719e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1325  
   data-arc span      11027 days (30.19 yr)  
   first obs. used      1991-01-11  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52518  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:41:26  

Additional Information
 Earth MOID = .866308 au 
 Jupiter MOID = 2.50713 au 
 T_jup = 3.500 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457326.5 (2015-Oct-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2170157564176398 3.7045e-08  
q 1.869387104521993 8.7876e-08 au
tp 2457271.499889223702
(2015-Sep-05.99988922)
2.5724e-05 TDB
node 55.57982040512297 7.0767e-05 deg
peri 287.1928006214545 7.1098e-05 deg
i 2.966128129965032 3.3718e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1325  
   data-arc span      11027 days (30.19 yr)  
   first obs. used      1991-01-11  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52518  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:41:26  

Additional Information
 Jupiter MOID = 2.50713 au 
 T_jup = 3.500 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.372315552917211E-15 -3.247385570787124E-15 1.899616245403554E-13 9.406289611071752E-16 1.640455787294199E-14 -1.789100181306055E-15
q -3.247385570787124E-15 7.72212522651037E-15 -4.381606613725275E-13 -3.221261958411516E-15 -3.479538346017428E-14 4.294864608151647E-15
tp 1.899616245403554E-13 -4.381606613725275E-13 6.617149770662937E-10 -1.024856016615823E-13 1.880560122297344E-10 -5.850869496351059E-13
node 9.406289611071752E-16 -3.221261958411516E-15 -1.024856016615823E-13 5.007997983540267E-9 -5.001093746171165E-9 -5.581158977043677E-11
peri 1.640455787294199E-14 -3.479538346017428E-14 1.880560122297344E-10 -5.001093746171165E-9 5.054898663619241E-9 5.564443195506069E-11
i -1.789100181306055E-15 4.294864608151647E-15 -5.850869496351059E-13 -5.581158977043677E-11 5.564443195506069E-11 1.136875103144364E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.42   n/a MPCxxxxx  

58269 (1993 TG20)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 TG20 = 1997 WL53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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