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18419 (1993 TS20)
Classification: Main-belt Asteroid          SPK-ID: 2018419
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1123416939530132 3.0932e-08  
a 2.2846424892542 7.7326e-09 au
q 2.027981881934354 6.9609e-08 au
i 2.236814318465657 3.8673e-06 deg
node 146.9253812275512 9.0334e-05 deg
peri 119.0626896424279 9.2431e-05 deg
M 358.7279867014499 2.2387e-05 deg
tp 2459004.956715918601
(2020-Jun-04.45671592)
7.8446e-05 TDB
period 1261.321507035439
3.45
6.4036e-06
1.753e-08
d
yr
n .285414938215182 1.449e-09 deg/d
Q 2.541303096574046 8.6013e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1694  
   data-arc span      10244 days (28.05 yr)  
   first obs. used      1992-04-05  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48472  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:48:55  

Additional Information
 Earth MOID = 1.01323 au 
 Jupiter MOID = 2.51773 au 
 T_jup = 3.593 
[ 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 MPO332989  
diameter diameter 6.203 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18419 (1993 TS20)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 TS20 = 1992 GR6 = 1992 GS = 1996 PL6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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