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JPL Small-Body Database Browser
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9130 Galois (1998 HQ148)
Classification: Main-belt Asteroid          SPK-ID: 2009130
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2247187258745457 2.8577e-08  
a 2.365952543736538 8.0061e-09 au
q 1.834278702628423 6.7543e-08 au
i 1.633926912374616 3.9558e-06 deg
node 230.9348732993623 0.00012804 deg
peri 67.75912464433446 0.00012844 deg
M 231.4182389192329 1.1394e-05 deg
tp 2459075.271170782120
4.3116e-05 TDB
period 1329.252454196855
n .2708289150517423 1.3747e-09 deg/d
Q 2.897626384844653 9.8053e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1962  
   data-arc span      16657 days (45.60 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50167  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:59:54  

Additional Information
 Earth MOID = .818583 au 
 Jupiter MOID = 2.32454 au 
 T_jup = 3.513 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO279612  

9130 Galois           Discovered 1998 Apr. 25 by E. W. Elst at the European Southern Observatory.
Named in memory of the famous French mathematician Evariste Galois (1811-1832), well known for his contributions to group theory. At the age of only 16, he launched himself into a deeper understanding of the essential conditions that an equation must satisfy to be solvable by radicals (Galois theory). He died in Paris in a duel, under circumstances that have never been fully explained, although his republican activities and sympathies were well known.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1998 HQ148 = 1191 T-2 = 1995 WY26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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