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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 
[ show covariance matrix ]

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2017-Apr-19 00:16 9_09:37 Earth 0.199126183605811 0.0680652041185929 0.33156620893867 11.7404353072122 11.739295527642 2457862.511211071 13537.3301101756 6621715.95996879 71.2372082640081 5.42150948206144 34373.8729379648 T 6 CATAB v2.0g-lin.ifort 2021-May-11 05:54:56 2021-May-11 05:54
2019-Apr-27 21:35 6_01:58 Earth 0.0957043663127465 0.0407071113317961 0.160341288861923 9.4671332475568 9.46419201351892 2458601.399481090 8758.12288983739 3354025.03065581 122.458871119671 20.9335736533344 39109.0412565457 T 6 CATAB v2.0g-lin.ifort 2021-May-11 05:54:56 2021-May-11 05:54
2021-May-06 15:16 00:01 Earth 0.0453103625293144 0.045073130956223 0.0455475897745547 8.20505673018703 8.19788666623538 2459341.135980351 1.2631345525669 11809.0255597942 57.7673049972236 0.127763383199268 347.798987148159 T 6 CATAB v2.0g-lin.ifort 2021-May-11 05:54:56 2021-May-11 05:54
2023-May-19 00:55 9_11:53 Earth 0.112432491424224 0.0955230628244429 0.201638954493129 8.1677702526765 8.16486827432932 2460083.538112738 13672.6908443369 5898911.68141997 279.408569701945 58.1817174621369 59147.7448607547 T 6 CATAB v2.0g-lin.ifort 2021-May-11 05:54:56 2021-May-11 05:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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