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(2021 AN1)
Classification: Apollo [NEO]          SPK-ID: 54104549
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2352686561742342 0.00018256  
a 1.213383094163372 0.00023466 au
q .9279120841750215 4.2063e-05 au
i 3.046002058151569 0.0021927 deg
node 290.1885434703379 0.00022975 deg
peri 236.9761147033686 0.0030015 deg
M 158.1650981568255 0.060063 deg
tp 2458786.011757397138
(2019-Oct-29.51175740)
0.14367 TDB
period 488.1972586674503
1.34
0.14162
0.0003877
d
yr
n .737406844484607 0.00021392 deg/d
Q 1.498854104151723 0.00028987 au
  Orbit Determination Parameters
   # obs. used (total)      47  
   data-arc span      14 days  
   first obs. used      2021-01-04  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .3953  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-18 06:07:28  

Additional Information
 Earth MOID = .00977192 au 
 Jupiter MOID = 3.47544 au 
 T_jup = 5.226 
[ 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 26.86   .57853 E2021B55 autocmod 2.8

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