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(2017 GL4)
Classification: Amor [NEO]          SPK-ID: 3773753
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .463437356554982 0.00012675  
a 1.923718032757956 0.00046742 au
q 1.032195232899459 6.9602e-06 au
i 5.593840114664834 0.0011167 deg
node 201.5563620899556 4.4649e-05 deg
peri 24.13502357571369 0.00083058 deg
M 55.06651421413711 0.15106 deg
tp 2458851.428151738304
(2020-Jan-02.92815174)
0.35461 TDB
period 974.5644179604375
2.67
0.35519
0.0009725
d
yr
n .3693957971022642 0.00013463 deg/d
Q 2.815240832616454 0.00068403 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      36 days  
   first obs. used      2017-03-21  
   last obs. used      2017-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .43458  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-26 06:21:15  

Additional Information
 Earth MOID = .0392146 au 
 Jupiter MOID = 2.17324 au 
 T_jup = 3.777 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457844.5 (2017-Apr-01.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4641804104745775 0.00012661  
q 1.032084213638631 5.8937e-06 au
tp 2457876.550720227681
(2017-May-03.05072023)
0.00013555 TDB
node 201.6192013445537 2.1433e-05 deg
peri 23.96751008192302 0.00084171 deg
i 5.603291517090154 0.0011146 deg
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      36 days  
   first obs. used      2017-03-21  
   last obs. used      2017-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .43458  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-26 06:21:15  

Additional Information
 Jupiter MOID = 2.17324 au 
 T_jup = 3.777 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.602963048923251E-8 7.459513057083568E-10 1.57196254003282E-8 1.093889866386151E-9 1.06362689913209E-7 1.411160026539958E-7
q 7.459513057083568E-10 3.473580070335773E-11 7.238350115443434E-10 4.924128035652747E-11 4.9425946099853E-9 6.567244820692208E-9
tp 1.57196254003282E-8 7.238350115443434E-10 1.837462553929796E-8 1.703952545446715E-9 1.070012850680611E-7 1.383085595186946E-7
node 1.093889866386151E-9 4.924128035652747E-11 1.703952545446715E-9 4.593891720911806E-10 7.582481380450815E-9 9.557872001173848E-9
peri 1.06362689913209E-7 4.9425946099853E-9 1.070012850680611E-7 7.582481380450815E-9 7.08469801846901E-7 9.363392132169845E-7
i 1.411160026539958E-7 6.567244820692208E-9 1.383085595186946E-7 9.557872001173848E-9 9.363392132169845E-7 1.242367125485013E-6

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.9   n/a MPO405784  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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