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(2009 EW)
Classification: Apollo [NEO]          SPK-ID: 3449121
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3892135637818294 0.00019537  
a 1.257593852594976 0.00025363 au
q .768121267436365 9.0796e-05 au
i 10.71284888479472 0.0047622 deg
node 345.8751950694185 0.0018822 deg
peri 258.2552289818292 0.0027429 deg
M 90.04254605460292 0.95915 deg
tp 2459071.658936368590
(2020-Aug-10.15893637)
1.3335 TDB
period 515.1207394688771
1.41
0.15583
0.0004266
d
yr
n .6988652803441449 0.00021142 deg/d
Q 1.747066437753588 0.00035234 au
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      4 days  
   first obs. used      2009-03-02  
   last obs. used      2009-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .32146  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:39:02  

Additional Information
 Earth MOID = .0017309 au 
 Jupiter MOID = 3.32378 au 
 T_jup = 5.027 
[ 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 26.4   n/a MPO154268  
rotation period rot_per 0.06363 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Birtwhistle, P.; Masiero, J. (2011) Minor Planet Bull. 38, 36-39.]

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