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JPL Small-Body Database Browser
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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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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.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2762729948361724 1.851e-05  
a 19.51796370855025 0.00061774 au
q 14.12567742168535 8.7106e-05 au
i 12.74997865049986 2.082e-05 deg
node 117.3743512325061 0.00013461 deg
peri 93.99820611538823 0.0020052 deg
M 74.78064360228743 0.004638 deg
tp 2452458.103152763649
0.095857 TDB
period 31495.62174847399
n .01143016013066777 5.4264e-07 deg/d
Q 24.91024999541516 0.0007884 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   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-N16  
   condition code      3  
   norm. resid. RMS      .44617  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 15:22:19  

Additional Information
 Earth MOID = 13.1468 au 
 Jupiter MOID = 8.85223 au 
 T_jup = 3.898 
[ 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   n/a MPO186588  
rotation period rot_per 13.94 h n/a LCDB (Rev. 2019-August); 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 ]
FirstGov 2020-Apr-05 03:51 UT
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