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(2021 JE1)
Classification: Apollo [NEO]          SPK-ID: 54143420
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .261259568347969 0.00011565  
a 1.02265268532425 3.9842e-05 au
q .7554748861865448 8.8838e-05 au
i 1.007497412464885 0.00041386 deg
node 76.55779993974848 0.00019376 deg
peri 265.3529591665907 0.00073845 deg
M 139.3847274366881 0.022664 deg
tp 2459054.247479000300
(2020-Jul-23.74747900)
0.032328 TDB
period 377.7379956050576
1.03
0.022074
6.044e-05
d
yr
n .9530415372257032 5.5694e-05 deg/d
Q 1.289830484461955 5.025e-05 au
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      17 days  
   first obs. used      2021-05-03  
   last obs. used      2021-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .64345  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-27 05:49:19  

Additional Information
 Earth MOID = .000792472 au 
 Jupiter MOID = 4.06841 au 
 T_jup = 5.944 
[ 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 26.67   .41351 11 autocmod 2.9c

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