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8405 Asbolus (1995 GO)
Classification: Centaur          SPK-ID: 2008405
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .622051796248288 9.3343e-07  
a 17.99331690960562 4.2306e-05 au
q 6.800541805520751 1.3584e-06 au
i 17.62042807044602 2.7547e-05 deg
node 5.937581402649138 2.685e-05 deg
peri 290.3139719822478 3.7045e-05 deg
M 83.98324475814208 0.00030096 deg
tp 2452496.876080481867
0.00082633 TDB
period 27878.23473323875
n .01291329969220677 4.5543e-08 deg/d
Q 29.1860920136905 6.8623e-05 au
  Orbit Determination Parameters
   # obs. used (total)      465  
   data-arc span      8571 days (23.47 yr)  
   first obs. used      1995-03-28  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .52876  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:55:36  

Additional Information
 Earth MOID = 5.83344 au 
 Jupiter MOID = 2.29412 au 
 T_jup = 3.065 
[ 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 9.1   n/a MPO210403  
diameter diameter 66 km 8 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  
rotation period rot_per 8.9351 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Brown, W.R.; Luu, J.X. (1997) Icarus 126, 218-224.]
[Davies, J.K.; McBride, N.; Ellison, S.L.; Green, S.; Ballantyne, D.R. (1998) Icarus 134, 213-227.]
[Brucker, M.; Romanishin, W.J.; Tegler, S.C.; Consolmagno, S.J.; Grundy, W.M. (2008) Bull. Amer. Astron. Soc. 40, 483 (47.09)]
geometric albedo albedo 0.13   0.03 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  

8405 Asbolus           Discovered 1995 Apr. 5 by Spacewatch.
The "black one", Asbolus was the centaur who supposedly made forecasts from the flight formations of birds. He caused the battle between the centaurs and Heracles and thus was indirectly responsible for the deaths of Pholus and Chiron.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990928/MPCPages.arcLast Updated: 2010-06-11
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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