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(2021 AF7)
Classification: Apollo [NEO]          SPK-ID: 54106002
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5337303011621641 0.00027318  
a 2.154944133737493 0.0012825 au
q 1.004785152250142 9.3048e-06 au
i 2.433976989246175 0.0010958 deg
node 23.26317619387613 0.0017448 deg
peri 109.725224914099 0.0010422 deg
M 283.3071548312409 0.068363 deg
tp 2459246.652810773473
(2021-Feb-01.15281077)
0.00032773 TDB
period 1155.453441366753
3.16
1.0315
0.002824
d
yr
n .3115659940171766 0.00027814 deg/d
Q 3.305103115224845 0.001967 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      47 days  
   first obs. used      2021-01-03  
   last obs. used      2021-02-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40339  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-20 05:21:09  

Additional Information
 Earth MOID = .0431631 au 
 Jupiter MOID = 1.76226 au 
 T_jup = 3.502 
[ 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 25.1   .46271 E2021D54 autocmod 2.8

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