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83982 Crantor (2002 GO9)
Classification: Centaur          SPK-ID: 2083982
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.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2777045281568754 1.4206e-05  
a 19.41680693902513 0.00047369 au
q 14.02467172971001 6.759e-05 au
i 12.78064336809002 1.703e-05 deg
node 117.4026868259467 0.00016248 deg
peri 92.83607857373252 0.0015562 deg
M 59.64983159082132 0.0030139 deg
tp 2452422.382910381091
0.073066 JED
period 31251.08826878315
n .0115195988345662 4.2154e-07 deg/d
Q 24.80894214834025 0.00060523 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      4882 days (13.37 yr)  
   first obs. used      2001-03-20  
   last obs. used      2014-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      2  
   fit RMS      .51513  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 15:50:49  

Additional Information
 Earth MOID = 13.0459 au 
 Jupiter MOID = 8.75525 au 
 T_jup = 3.888 
[ 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 8.8 mag n/a MPO186588  
rotation period rot_per 13.94 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Ortiz, J.L.; Gutierrez, P.J.; Casanova, V.; Sota, A. (2003) Astron. Astrophys. 407, 1149-1155.]

83982 Crantor           Discovered 2002 Apr. 12 by the Near-Earth Asteroid Tracking (NEAT) project at Palomar.
Crantor was a Lapith who was killed by the centaur Demoleon in the battle between the Lapiths and the Centaurs. Demoleon fatally wounded Crantor after he tore off Crantor's chest and left shoulder with a tree trunk that Demoleon had thrown at Theseus, who ducked out of the way.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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