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(2021 AE4)
Classification: Apollo [NEO, PHA]          SPK-ID: 54105102
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627821200900174 9.1025e-06  
a 1.160284808624134 1.1607e-05 au
q .9714111875680576 9.2774e-07 au
i 15.76659241169135 0.00057707 deg
node 49.5893273639763 0.00024915 deg
peri 172.5038647790637 0.00021904 deg
M 252.9862405656715 0.0015851 deg
tp 2459336.200815189720
(2021-May-01.70081519)
0.00017166 TDB
period 456.504787108974
1.25
0.00685
1.875e-05
d
yr
n .7886007116811746 1.1833e-05 deg/d
Q 1.349158429680211 1.3496e-05 au
  Orbit Determination Parameters
   # obs. used (total)      35  
   data-arc span      86 days  
   first obs. used      2021-01-06  
   last obs. used      2021-04-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .36162  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:45  

Additional Information
 Earth MOID = .0385509 au 
 Jupiter MOID = 3.62403 au 
 T_jup = 5.381 
[ 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 21.83   .32021 E2021-DA1 autocmod 2.8

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