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JPL Small-Body Database Browser
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(2021 JE)
Classification: Amor [NEO]          SPK-ID: 54142831
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 2459336.5 (2021-May-02.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .345103346315036 0.00077368  
a 1.595878780764411 0.0019799 au
q 1.045135673209453 6.1984e-05 au
i 12.52219444485786 0.019108 deg
node 41.66153646071796 0.0012862 deg
peri 195.3833043371596 0.002779 deg
M 352.4788438487716 0.014267 deg
tp 2459351.884393578899
(2021-May-17.38439358)
0.0014746 TDB
period 736.3737139667111
2.02
1.3704
0.003752
d
yr
n .4888821982261501 0.00090979 deg/d
Q 2.146621888319368 0.0026632 au
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      5 days  
   first obs. used      2021-05-01  
   last obs. used      2021-05-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .39179  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-11 05:54:55  

Additional Information
 Earth MOID = .0443717 au 
 Jupiter MOID = 2.8632 au 
 T_jup = 4.275 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 5.985864249260523E-7 4.791512714068438E-8 -4.010087941268692E-7 -9.949300101848846E-7 1.814539977760822E-6 1.478233857395165E-5
q 4.791512714068438E-8 3.842027414916951E-9 -3.561737879354473E-8 -7.970265310470794E-8 1.414488981821364E-7 1.183938067334312E-6
tp -4.010087941268692E-7 -3.561737879354473E-8 2.174580325084924E-6 6.990689022264472E-7 8.424817091254465E-7 -1.02486798561329E-5
node -9.949300101848846E-7 -7.970265310470794E-8 6.990689022264472E-7 1.654337987194243E-6 -2.980895921838007E-6 -2.457652457837553E-5
peri 1.814539977760822E-6 1.414488981821364E-7 8.424817091254465E-7 -2.980895921838007E-6 7.723018339942843E-6 4.443740831333312E-5
i 1.478233857395165E-5 1.183938067334312E-6 -1.02486798561329E-5 -2.457652457837553E-5 4.443740831333312E-5 .0003651248465663794

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 25.78   .28089 MPO622832 autocmod 2.9c

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