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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2353739529319297 0.0001824  
a 1.213345507357551 0.00023487 au
q .9277555790186062 4.1726e-05 au
i 3.046487198821263 0.0021921 deg
node 290.1814215487542 0.00024757 deg
peri 236.9830407091292 0.0029583 deg
M 305.6636707473907 0.017281 deg
tp 2459274.182262274540
(2021-Feb-28.68226227)
0.0020431 TDB
period 488.1745746113426
1.34
0.14175
0.0003881
d
yr
n .737441109641181 0.00021412 deg/d
Q 1.498935435696495 0.00029015 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .3953  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:34  

Additional Information
 Earth MOID = .00971834 au 
 Jupiter MOID = 3.47441 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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