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83983 (2002 GE39)
Classification: Jupiter Trojan          SPK-ID: 2083983
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1279035206105646 7.3036e-08  
a 5.194979876297381 1.5143e-07 au
q 4.530523660617911 4.5725e-07 au
i 55.41923217397387 6.5454e-06 deg
node 172.9627205926868 6.9751e-06 deg
peri 220.4594606722787 3.0556e-05 deg
M 317.4939928941704 3.6181e-05 deg
tp 2459511.148476983301
(2021-Oct-23.64847698)
0.00044197 TDB
period 4324.881686870468
11.84
0.0001891
5.177e-07
d
yr
n .08323927128293304 3.6396e-09 deg/d
Q 5.859436091976852 1.708e-07 au
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      10789 days (29.54 yr)  
   first obs. used      1991-01-15  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59376  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:50:21  

Additional Information
 Earth MOID = 3.60784 au 
 Jupiter MOID = .225475 au 
 T_jup = 2.127 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457129.5 (2015-Apr-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262529487047548 7.2856e-08  
q 4.538089529651914 4.5752e-07 au
tp 2455200.917829131233
(2010-Jan-04.41782913)
0.00042176 TDB
node 172.9550371109504 6.9696e-06 deg
peri 221.2401060709345 3.1098e-05 deg
i 55.41900285560075 6.5484e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      10789 days (29.54 yr)  
   first obs. used      1991-01-15  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59376  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:50:21  

Additional Information
 Jupiter MOID = .225475 au 
 T_jup = 2.127 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.307951876381986E-15 -3.223504687614947E-14 -6.545277982543204E-12 -7.748579271028416E-15 -6.331435124227189E-13 7.40317507514682E-15
q -3.223504687614947E-14 2.093288596343832E-13 2.976573222536497E-11 5.579023867167028E-14 3.723599342841047E-12 -3.044101835121759E-14
tp -6.545277982543204E-12 2.976573222536497E-11 1.778795468291909E-7 1.263554627455355E-11 1.267070800285384E-8 3.172478172850753E-11
node -7.748579271028416E-15 5.579023867167028E-14 1.263554627455355E-11 4.857567107370774E-11 -2.582991281710552E-11 9.902775185668245E-12
peri -6.331435124227189E-13 3.723599342841047E-12 1.267070800285384E-8 -2.582991281710552E-11 9.670910237652852E-10 -2.918915325374969E-12
i 7.40317507514682E-15 -3.044101835121759E-14 3.172478172850753E-11 9.902775185668245E-12 -2.918915325374969E-12 4.288166272765522E-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 11.9   n/a MPO493463  

83983 (2002 GE39)          Discovered 2002-Apr-04 by NEAT at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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