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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 129 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4106494160836004 2.9747e-08  
a 1.382729051702304 7.0989e-10 au
q .8149121740189226 4.1199e-08 au
i 8.921594986242253 4.3063e-06 deg
node 109.3483540623553 7.5972e-06 deg
peri 293.4455641650343 9.6661e-06 deg
M 15.58129539083217 2.9516e-06 deg
tp 2459174.795739224012
(2020-Nov-21.29573922)
4.8739e-06 TDB
period 593.8873275453387
1.63
4.5735e-07
1.252e-09
d
yr
n .6061755880327599 4.6681e-10 deg/d
Q 1.950545929385686 1.0014e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      6880 days (18.84 yr)  
   first obs. used      2002-06-01  
   last obs. used      2021-04-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .30671  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:27:01  

Additional Information
 Earth MOID = .00202313 au 
 Jupiter MOID = 3.48195 au 
 T_jup = 4.692 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457529.5 (2016-May-21.0) TDB
Reference: JPL 129 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4106137512719645 2.9804e-08  
q .8147891871846688 4.123e-08 au
tp 2457393.517054227563
(2016-Jan-06.01705423)
5.3063e-06 TDB
node 109.3969828624802 7.6024e-06 deg
peri 293.3704368120608 9.6697e-06 deg
i 8.918907444703553 4.3053e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      6880 days (18.84 yr)  
   first obs. used      2002-06-01  
   last obs. used      2021-04-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .30671  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:27:01  

Additional Information
 Jupiter MOID = 3.48195 au 
 T_jup = 4.692 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.882935939700275E-16 -1.228782346513007E-15 -3.241441085475004E-14 1.524447216432516E-14 -1.673715928450337E-13 1.552007847362905E-14
q -1.228782346513007E-15 1.699943651259476E-15 4.392956542998904E-14 -2.135916244435635E-14 2.31294717107102E-13 -2.130180783690136E-14
tp -3.241441085475004E-14 4.392956542998904E-14 2.815677860658421E-11 6.079787133072174E-12 1.920738902674534E-11 -5.907978868391865E-12
node 1.524447216432516E-14 -2.135916244435635E-14 6.079787133072174E-12 5.779703536316864E-11 -5.476005426664281E-11 1.878477215411454E-11
peri -1.673715928450337E-13 2.31294717107102E-13 1.920738902674534E-11 -5.476005426664281E-11 9.350309680907194E-11 -2.496763287602589E-11
i 1.552007847362905E-14 -2.130180783690136E-14 -5.907978868391865E-12 1.878477215411454E-11 -2.496763287602589E-11 1.853530822661671E-11

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 19.70   n/a MPCxxxxx  

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

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