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13585 Justinsmith (1993 TC20)
Classification: Main-belt Asteroid          SPK-ID: 2013585
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08597115496195679 3.9047e-08  
a 2.786040618267582 1.6718e-08 au
q 2.546521488544193 1.1411e-07 au
i 4.242230640737144 6.0842e-06 deg
node 39.10005143501617 5.6676e-05 deg
peri 268.712731775105 6.707e-05 deg
M 325.5223489965238 3.5808e-05 deg
tp 2459163.172732219556
(2020-Nov-09.67273222)
0.00016915 TDB
period 1698.55491585363
4.65
1.5288e-05
4.186e-08
d
yr
n .2119448695122568 1.9077e-09 deg/d
Q 3.02555974799097 1.8155e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1148  
   data-arc span      10770 days (29.49 yr)  
   first obs. used      1991-02-20  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55397  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:45:23  

Additional Information
 Earth MOID = 1.5363 au 
 Jupiter MOID = 2.16968 au 
 T_jup = 3.322 
[ 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 14.4   n/a MPO344413  
diameter diameter 5.553 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 50.281 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.120   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13585 Justinsmith           Discovered 1993 Oct. 9 by E. W. Elst at the European Southern Observatory.
Justin Erik Halldór Smith (1972) is an American-Canadian philosopher, at present a professor in the Department of Philosophy and Sciences at Diderot University, Paris. His recent book Nature, Human Nature and Human Difference (2015) is a collection of philosophical essays.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-08-29Last Updated: 2015-09-02

Alternate Designations
 1993 TC20 = 1998 VY30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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