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JPL Small-Body Database Browser
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(2021 GK1)
Classification: Apollo [NEO]          SPK-ID: 54134663
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07939609789838137 1.9142e-07  
a 1.092226550072591 2.1975e-07 au
q 1.005508023975816 9.8301e-09 au
i 1.281024921372295 1.3982e-06 deg
node 237.441239308596 3.9776e-05 deg
peri .9247774338994598 6.3924e-05 deg
M 37.1234184428655 3.7438e-05 deg
tp 2459353.505492292518
(2021-May-19.00549229)
3.1365e-05 TDB
period 416.9342001333951
1.14
0.00012583
3.445e-07
d
yr
n .8634455985736373 2.6059e-07 deg/d
Q 1.178945076169366 2.372e-07 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      177 days  
   first obs. used      2021-03-15  
   last obs. used      2021-09-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .48278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-15 07:42:19  

Additional Information
 Earth MOID = .00436809 au 
 Jupiter MOID = 3.79519 au 
 T_jup = 5.677 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459325.5 (2021-Apr-21.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07668979737237301 1.7205e-07  
q 1.002573103010041 2.4013e-08 au
tp 2459368.610497024664
(2021-Jun-03.11049702)
1.7924e-05 TDB
node 261.5067977869311 0.00019419 deg
peri 352.0448399458139 0.00019415 deg
i .3840230052701148 1.2156e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      177 days  
   first obs. used      2021-03-15  
   last obs. used      2021-09-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .48278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-15 07:42:19  

Additional Information
 Jupiter MOID = 3.79519 au 
 T_jup = 5.677 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.96027931573141E-14 -2.639094048981681E-15 -1.824928563270819E-12 -2.925712727672551E-11 2.791673212585101E-11 1.902143161362712E-13
q -2.639094048981681E-15 5.766033830447366E-16 -1.890845943506115E-14 4.061347116236433E-12 -4.146276143674843E-12 -2.052087960026918E-14
tp -1.824928563270819E-12 -1.890845943506115E-14 3.21279440079793E-10 7.097662655047315E-10 -4.114054550664605E-10 -6.779048603859496E-12
node -2.925712727672551E-11 4.061347116236433E-12 7.097662655047315E-10 3.77113378417987E-8 -3.756105609868889E-8 -2.249028057512804E-10
peri 2.791673212585101E-11 -4.146276143674843E-12 -4.114054550664605E-10 -3.756105609868889E-8 3.769594969110928E-8 2.21314878884611E-10
i 1.902143161362712E-13 -2.052087960026918E-14 -6.779048603859496E-12 -2.249028057512804E-10 2.21314878884611E-10 1.477692739286246E-12

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 27.03   .28029 MPO641172 autocmod 2.9c

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