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(2002 AC9)
Classification: Apollo [NEO, PHA]          SPK-ID: 3102752
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5604646786990494 1.916e-07  
a 1.703850627153223 3.7833e-08 au
q .7489025328546181 3.4244e-07 au
i 2.278060839517327 3.1913e-05 deg
node 2.498924666473667 0.0011886 deg
peri 28.56183374728098 0.0011757 deg
M 125.0396559068659 6.3976e-05 deg
tp 2458718.342906071431
(2019-Aug-22.84290607)
0.00013527 TDB
period 812.3547132114855
2.22
2.7056e-05
7.408e-08
d
yr
n .4431561658290999 1.476e-08 deg/d
Q 2.658798721451828 5.9036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      3132 days (8.57 yr)  
   first obs. used      2002-01-09  
   last obs. used      2010-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60911  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:15:34  

Additional Information
 Earth MOID = .0287032 au 
 Jupiter MOID = 2.79241 au 
 T_jup = 4.001 
[ 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 21.0   n/a MPO181631  

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