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JPL Small-Body Database Browser
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38083 Rhadamanthus (1999 HX11)
Classification: TransNeptunian Object          SPK-ID: 2038083
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1500386692551893 0.00019504  
a 39.1262710110948 0.0094249 au
q 33.25581737567224 0.006325 au
i 12.74559331371754 0.00085448 deg
node 10.00209676166666 0.00036006 deg
peri 81.23142019382379 0.064047 deg
M 103.3555955539394 0.088121 deg
tp 2432936.011795893239
(1949-Jan-19.51179589)
12.72 TDB
period 89392.50655913117
244.74
32.3
0.08843
d
yr
n .00402718319305509 1.4551e-06 deg/d
Q 44.99672464651736 0.010839 au
  Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      3367 days (9.22 yr)  
   first obs. used      1999-03-20  
   last obs. used      2008-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .31336  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-05 19:12:55  

Additional Information
 Earth MOID = 32.2968 au 
 Jupiter MOID = 28.2509 au 
 T_jup = 5.422 
[ 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 7.1   n/a MPO358978  

38083 Rhadamanthus           Discovered 1999 Apr. 17 by the Deep Ecliptic Survey.
Rhadamanthus was a son of Zeus and Europa. Because of his just and upright life, after death he was appointed a judge of the dead and the ruler of Elysium, a blissfully beautiful area of the Underworld where those favored by the gods spent their life after death. The name was suggested by E. K. Elliot.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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