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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08597040753843413 3.898e-08  
a 2.78640966387434 1.7452e-08 au
q 2.546860889502032 1.1414e-07 au
i 4.241040887592701 6.0827e-06 deg
node 39.04331902623077 5.6705e-05 deg
peri 268.3620479419394 6.7094e-05 deg
M 8.251306141910096 3.5841e-05 deg
tp 2459161.560884857338
(2020-Nov-08.06088486)
0.00016907 TDB
period 1698.892419002339
4.65
1.5961e-05
4.37e-08
d
yr
n .2119027643971754 1.9908e-09 deg/d
Q 3.025958438246649 1.8952e-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 = 1.5346 au 
 Jupiter MOID = 2.16684 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 14.39   n/a E2021B10  
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. 2020-October); 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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