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(2021 AC)
Classification: Apollo [NEO]          SPK-ID: 54104073
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07503406912028313 4.8149e-07  
a 1.03661043096658 2.5607e-07 au
q .958829332238627 2.8482e-07 au
i 26.62079265271831 4.7816e-05 deg
node 285.2410141348547 2.4756e-06 deg
peri 251.4547690032156 6.1157e-05 deg
M 101.1226408751269 4.4218e-05 deg
tp 2459288.215152061115
(2021-Mar-14.71515206)		 6.0554e-05 TDB
period 385.4976978512354
1.06		 0.00014284
3.911e-07		 d
yr
n .933857716937456 3.4603e-07 deg/d
Q 1.114391529694533 2.7528e-07 au
   Orbit Determination Parameters
   # obs. used (total)      143  
   data-arc span      183 days  
   first obs. used      2021-01-02  
   last obs. used      2021-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .58264  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 05:54:53  

Additional Information
 Earth MOID = .0235702 au 
 Jupiter MOID = 3.98879 au 
 T_jup = 5.815 
[ 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 23.68   .39553 E2021N40 autocmod 2.8

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