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JPL Small-Body Database Browser
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(2021 AT5)
Classification: Apollo [NEO]          SPK-ID: 54105514
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4603978336276888 0.00011915  
a 1.82691340320229 0.00040432 au
q .9858064301425675 5.1581e-07 au
i 7.660636974096784 0.0015102 deg
node 293.7145771572447 3.3767e-05 deg
peri 172.0714484803613 0.00019484 deg
M 69.68192825739057 0.023197 deg
tp 2459221.920586874504
(2021-Jan-07.42058687)
0.00018863 TDB
period 901.9352692570317
2.47
0.29942
0.0008198
d
yr
n .3991417258763477 0.0001325 deg/d
Q 2.668020376262013 0.00059047 au
  Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      4 days  
   first obs. used      2021-01-13  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .37115  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-27 05:49:19  

Additional Information
 Earth MOID = .00545928 au 
 Jupiter MOID = 2.49638 au 
 T_jup = 3.891 
[ 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 27.53   .43156 MPO624180 autocmod 2.8

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