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5953 Shelton (1987 HS)
Classification: Main-belt Asteroid          SPK-ID: 2005953
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1671465077758813 7.4206e-08  
a 2.318988181754009 1.468e-08 au
q 1.931377405600285 1.739e-07 au
i 24.02589667931646 7.4205e-06 deg
node 137.7713684103502 1.528e-05 deg
peri 163.7546424330532 2.6781e-05 deg
M 32.45929483189229 2.6217e-05 deg
tp 2457484.199171163363
9.3561e-05 JED
period 1289.870855113355
n .2790977085596393 2.6501e-09 deg/d
Q 2.706598957907732 1.7133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      820  
   data-arc span      12113 days (33.16 yr)  
   first obs. used      1983-02-19  
   last obs. used      2016-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51668  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:54:02  

Additional Information
 Earth MOID = .922849 au 
 Jupiter MOID = 2.60282 au 
 T_jup = 3.446 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO319159  
rotation period rot_per 18. h n/a LCDB (Rev. 2016-February); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2012)]

5953 Shelton           Discovered 1987 Apr. 25 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Named in honor of Ian Shelton, Canadian astronomer, best known for his discovery of the supernova in the Large Magellanic Cloud on 1987 Feb. 24. During his four years as resident observer at the University of Toronto Southern Observatory, he participated in programs with astronomers worldwide, and more recently he has generously contributed to the astronomical education of school children, parents and teachers. Name suggested and citation prepared by D. MacCormack and R. Garrison.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980211/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1987 HS = 1983 DO = 1984 OD = 1987 FK1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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