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332446 (2008 AF4)
Classification: Apollo [NEO, PHA]          SPK-ID: 2332446
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 120 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4106494094477905 3.0518e-08  
a 1.382729052015464 7.2897e-10 au
q .8149121833790103 4.2281e-08 au
i 8.921598418200571 4.7712e-06 deg
node 109.3483542654021 8.6002e-06 deg
peri 293.4455591174008 1.0329e-05 deg
M 15.58130026491381 3.7997e-06 deg
tp 2459174.795731174570
(2020-Nov-21.29573117)
6.2743e-06 TDB
period 593.8873277470935
1.63
4.6964e-07
1.286e-09
d
yr
n .6061755878268306 4.7936e-10 deg/d
Q 1.950545920651917 1.0283e-09 au
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      6841 days (18.73 yr)  
   first obs. used      2002-06-01  
   last obs. used      2021-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .30481  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 21:01:53  

Additional Information
 Earth MOID = .00202315 au 
 Jupiter MOID = 3.48195 au 
 T_jup = 4.692 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.67   n/a E2021B25  

332446 (2008 AF4)          Discovered 2008-Jan-10 by LINEAR at Socorro
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

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