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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .112016246918692 3.0969e-08  
a 2.284173772777372 7.9097e-09 au
q 2.028309199440742 6.9583e-08 au
i 2.236702410437698 3.8721e-06 deg
node 146.9323958813266 9.0361e-05 deg
peri 119.0550331863684 9.2483e-05 deg
M 244.5159725766487 2.2254e-05 deg
tp 2459004.993510299117
(2020-Jun-04.49351030)
7.8979e-05 TDB
period 1260.933368507008
3.45
6.5496e-06
1.793e-08
d
yr
n .2855027941930455 1.483e-09 deg/d
Q 2.540038346114003 8.7957e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1690  
   data-arc span      9888 days (27.07 yr)  
   first obs. used      1992-04-05  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48687  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:37:54  

Additional Information
 Earth MOID = 1.01314 au 
 Jupiter MOID = 2.5188 au 
 T_jup = 3.594 
[ 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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