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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 ]

[ show orbit diagram ]
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
(2020-Aug-13.77117078)
4.3116e-05 TDB
period 1329.252454196855
3.64
6.7471e-06
1.847e-08
d
yr
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456375.5 (2013-Mar-24.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2257538106109895 2.8632e-08  
q 1.831740596623769 6.7746e-08 au
tp 2456414.287551817542
(2013-May-01.78755182)
3.8299e-05 TDB
node 231.2114187264623 0.00012818 deg
peri 67.10609758902903 0.00012856 deg
i 1.633611579075215 3.9502e-06 deg
  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
 Jupiter MOID = 2.32454 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.198153827981957E-16 -1.931662129929037E-15 4.492330988308761E-13 -5.451363865185321E-15 1.115052018212635E-13 -1.703131208104987E-16
q -1.931662129929037E-15 4.58956937175167E-15 -1.021767642982044E-12 1.334226564170551E-14 -2.539887198218087E-13 4.235923054368792E-16
tp 4.492330988308761E-13 -1.021767642982044E-12 1.466809553189977E-9 6.220169897962294E-13 3.975825782929681E-10 -4.832217508844323E-13
node -5.451363865185321E-15 1.334226564170551E-14 6.220169897962294E-13 1.642895503930752E-8 -1.642156168726136E-8 -2.127696896316932E-10
peri 1.115052018212635E-13 -2.539887198218087E-13 3.975825782929681E-10 -1.642156168726136E-8 1.652894264145223E-8 2.125373905397821E-10
i -1.703131208104987E-16 4.235923054368792E-16 -4.832217508844323E-13 -2.127696896316932E-10 2.125373905397821E-10 1.560396349405586E-11

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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