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73637 Guneus (1973 SX1)
Classification: Jupiter Trojan          SPK-ID: 2073637
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1856880168208607 7.3155e-08  
a 5.162859102688244 1.2617e-07 au
q 4.204178034784535 4.4966e-07 au
i 12.02983970975169 7.2331e-06 deg
node 187.2835060046255 2.5389e-05 deg
peri 204.9566008711519 2.9843e-05 deg
M 317.5400390398228 1.7187e-05 deg
tp 2459505.871709019277
(2021-Oct-18.37170902)
0.00021092 TDB
period 4284.832372257095
11.73
0.00015707
4.3e-07
d
yr
n .08401728906150067 3.0798e-09 deg/d
Q 6.121540170591953 1.496e-07 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      17169 days (47.01 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53291  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:48:15  

Additional Information
 Earth MOID = 3.21438 au 
 Jupiter MOID = .534388 au 
 T_jup = 2.922 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457177.5 (2015-Jun-04.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1831010190574347 7.2877e-08  
q 4.230485827168523 4.4644e-07 au
tp 2455204.785803641607
(2010-Jan-08.28580364)
0.0002191 TDB
node 187.4338624805803 2.5351e-05 deg
peri 204.3163477408305 3.0067e-05 deg
i 12.02578274982555 7.2305e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      17169 days (47.01 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53291  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:48:15  

Additional Information
 Jupiter MOID = .534388 au 
 T_jup = 2.922 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.311127982447425E-15 -3.197594515498008E-14 -1.090242612290208E-12 -2.879015867662224E-14 -2.936117512020318E-13 -4.473923925186616E-15
q -3.197594515498008E-14 1.993087179460413E-13 -3.334785755184171E-12 1.84148588781723E-13 1.378247976113147E-12 3.551320379463501E-14
tp -1.090242612290208E-12 -3.334785755184171E-12 4.800664026414144E-8 1.36641498765351E-12 3.417559014754129E-9 -8.628047732271963E-12
node -2.879015867662224E-14 1.84148588781723E-13 1.36641498765351E-12 6.426752058762425E-10 -6.261583899857436E-10 -3.096642267651335E-11
peri -2.936117512020318E-13 1.378247976113147E-12 3.417559014754129E-9 -6.261583899857436E-10 9.040039978076055E-10 3.030542996228826E-11
i -4.473923925186616E-15 3.551320379463501E-14 -8.628047732271963E-12 -3.096642267651335E-11 3.030542996228826E-11 5.22796799255231E-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 12.6   n/a MPO412631  

73637 Guneus           Discovered 1973 Sept. 19 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Guneus was a Greek warrior from Kyphos during the Trojan war.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

Alternate Designations
 1973 SX1 = 1997 UD26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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