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JPL Small-Body Database Browser
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266908 (2009 WX209)
Classification: Outer Main-belt Asteroid          SPK-ID: 2266908
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05747798382033744 1.2989e-07  
a 4.021680403594717 1.2799e-07 au
q 3.790522322426331 6.1237e-07 au
i 3.57878676316144 1.0837e-05 deg
node 205.7426359036923 0.00012371 deg
peri 291.7182158704638 0.00017364 deg
M 350.0323757633062 0.00011238 deg
tp 2458682.064075121410
(2019-Jul-17.56407512)
0.00091887 TDB
period 2945.844099500982
8.07
0.00014062
3.85e-07
d
yr
n .1222060597371677 5.8336e-09 deg/d
Q 4.252838484763102 1.3534e-07 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      5432 days (14.87 yr)  
   first obs. used      2004-03-15  
   last obs. used      2019-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6664  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:12:35  

Additional Information
 Earth MOID = 2.80661 au 
 Jupiter MOID = .805587 au 
 T_jup = 3.046 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457168.5 (2015-May-26.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05856220126716376 1.2909e-07  
q 3.788675089032049 6.0862e-07 au
tp 2455727.561000205655
(2011-Jun-15.06100021)
0.00094196 TDB
node 205.7672041463805 0.00012375 deg
peri 291.0654109252865 0.00017258 deg
i 3.577212351509063 1.0835e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      5432 days (14.87 yr)  
   first obs. used      2004-03-15  
   last obs. used      2019-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6664  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:12:35  

Additional Information
 Jupiter MOID = .805587 au 
 T_jup = 3.046 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.666443539050902E-14 -7.777393738992973E-14 6.535714548126266E-11 -4.690029739888709E-14 8.440843682163284E-12 -1.130516660701696E-14
q -7.777393738992973E-14 3.704163627312927E-13 -2.994195782880955E-10 2.076668529840379E-13 -3.815233466573906E-11 5.549030696892784E-14
tp 6.535714548126266E-11 -2.994195782880955E-10 8.872812865183328E-7 -5.336597629966494E-10 1.13244281924624E-7 -3.495094302312428E-12
node -4.690029739888709E-14 2.076668529840379E-13 -5.336597629966494E-10 1.531348031237464E-8 -1.535198611295582E-8 1.851769707739747E-10
peri 8.440843682163284E-12 -3.815233466573906E-11 1.13244281924624E-7 -1.535198611295582E-8 2.978444222885704E-8 -1.851968381625271E-10
i -1.130516660701696E-14 5.549030696892784E-14 -3.495094302312428E-12 1.851769707739747E-10 -1.851968381625271E-10 1.173929596576968E-10

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 15.2   n/a MPO433732  

266908 (2009 WX209)          Discovered 2009-Nov-18 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 WX209 = 2004 EK30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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