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(2021 AX)
Classification: Apollo [NEO]          SPK-ID: 54104275
[ 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 2459221.5 (2021-Jan-07.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7259141598537523 0.0022611  
a 2.752570141774394 0.020818 au
q .754440499869711 0.00051805 au
i 3.037923472698146 0.0095998 deg
node 86.06402501088817 0.0010017 deg
peri 85.71272923403217 0.010887 deg
M 350.7972252866381 0.11212 deg
tp 2459264.140501958035
(2021-Feb-18.64050196)		 0.035775 TDB
period 1668.038301818309
4.57		 18.923
0.05181		 d
yr
n .2158223822603882 0.0024484 deg/d
Q 4.750699783679077 0.03593 au
   Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      7 days  
   first obs. used      2021-01-04  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .4882  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-19 01:13:49  

Additional Information
 Earth MOID = .0196859 au 
 Jupiter MOID = .265886 au 
 T_jup = 2.889 
[ 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 25.013   .40908 6 autocmod 2.8

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