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JPL Small-Body Database Browser
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(2021 GJ3)
Classification: Apollo [NEO]          SPK-ID: 54135421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5302617525847548 0.00051563  
a 1.734789772257193 0.0016276 au
q .814897107253986 0.00012998 au
i 1.539062699447081 0.0015536 deg
node 10.52561060782123 0.0027919 deg
peri 263.1540898318693 0.0012118 deg
M 11.6024893793025 0.011283 deg
tp 2459369.602161281646
(2021-Jun-04.10216128)
0.011696 TDB
period 834.5814093896988
2.28
1.1745
0.003216
d
yr
n .4313539649334579 0.00060704 deg/d
Q 2.6546824372604 0.0024906 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      25 days  
   first obs. used      2021-03-23  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .45372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-19 06:24:13  

Additional Information
 Earth MOID = .00935955 au 
 Jupiter MOID = 2.48768 au 
 T_jup = 3.978 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459312.5 (2021-Apr-08.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5298626785350322 0.00051619  
q .8146398041245489 0.00012942 au
tp 2459369.653191615448
(2021-Jun-04.15319162)
0.011852 TDB
node 11.3612824230661 0.00042543 deg
peri 262.3941815729254 0.00098541 deg
i 1.60177912966894 0.0014403 deg
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      25 days  
   first obs. used      2021-03-23  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .45372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-19 06:24:13  

Additional Information
 Jupiter MOID = 2.48768 au 
 T_jup = 3.978 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.664503516995165E-7 -6.680611940511673E-8 -6.117652201522782E-6 2.086483720769542E-7 5.032617770058933E-7 7.432757259245299E-7
q -6.680611940511673E-8 1.675022850974363E-8 1.533856331708891E-6 -5.229049896995115E-8 -1.262215031323592E-7 -1.863513892105691E-7
tp -6.117652201522782E-6 1.533856331708891E-6 .0001404617975630991 -4.787921143871878E-6 -1.155595702968284E-5 -1.706461067431811E-5
node 2.086483720769542E-7 -5.229049896995115E-8 -4.787921143871878E-6 1.809888529727634E-7 3.765456601175479E-7 5.857364352458601E-7
peri 5.032617770058933E-7 -1.262215031323592E-7 -1.155595702968284E-5 3.765456601175479E-7 9.710326811330756E-7 1.400217544962748E-6
i 7.432757259245299E-7 -1.863513892105691E-7 -1.706461067431811E-5 5.857364352458601E-7 1.400217544962748E-6 2.074382950928418E-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 23.7   .44799 E2021H73 autocmod 2.9c

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