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233942 (2009 WH6)
Classification: Main-belt Asteroid          SPK-ID: 2233942
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09852667296945958 4.8274e-08  
a 3.019666740791356 4.0192e-08 au
q 2.722149023344652 1.5023e-07 au
i 7.655983823034127 5.3606e-06 deg
node 210.0777621677848 3.4888e-05 deg
peri 281.8671717308812 4.6064e-05 deg
M 303.8976236861037 3.0163e-05 deg
tp 2459299.186577436278
(2021-Mar-25.68657744)
0.0001633 TDB
period 1916.624124358631
5.25
3.8265e-05
1.048e-07
d
yr
n .1878302560344055 3.75e-09 deg/d
Q 3.31718445823806 4.4152e-08 au
  Orbit Determination Parameters
   # obs. used (total)      287  
   data-arc span      5943 days (16.27 yr)  
   first obs. used      2003-09-20  
   last obs. used      2019-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54584  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 01:50:35  

Additional Information
 Earth MOID = 1.74943 au 
 Jupiter MOID = 1.78207 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457649.5 (2016-Sep-18.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09832801625977779 4.8917e-08  
q 2.724708452851195 1.5273e-07 au
tp 2457388.900324243545
(2016-Jan-01.40032424)
0.00014833 TDB
node 210.0777827216818 3.4891e-05 deg
peri 283.0303751077666 4.5884e-05 deg
i 7.6532015100441 5.3608e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      287  
   data-arc span      5943 days (16.27 yr)  
   first obs. used      2003-09-20  
   last obs. used      2019-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54584  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 01:50:35  

Additional Information
 Jupiter MOID = 1.78207 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.392877159118088E-15 -7.256256104140651E-15 2.298473966045616E-12 -1.553787514468215E-14 5.408732630435773E-13 -3.888635048784623E-15
q -7.256256104140651E-15 2.332678805566534E-14 -5.647821053363804E-12 3.950050397395443E-14 -1.34829347630342E-12 1.341228621703606E-14
tp 2.298473966045616E-12 -5.647821053363804E-12 2.200048111955661E-8 -5.231106507374659E-11 4.436191526294233E-9 -3.439044204147745E-12
node -1.553787514468215E-14 3.950050397395443E-14 -5.231106507374659E-11 1.217407007384319E-9 -1.217019579147104E-9 -2.409981656215474E-11
peri 5.408732630435773E-13 -1.34829347630342E-12 4.436191526294233E-9 -1.217019579147104E-9 2.105355691138968E-9 2.316590345565573E-11
i -3.888635048784623E-15 1.341228621703606E-14 -3.439044204147745E-12 -2.409981656215474E-11 2.316590345565573E-11 2.873839850823486E-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 15.7   n/a MPO413119  

233942 (2009 WH6)          Discovered 2009-Nov-18 by Lowe, A. at Mayhill
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

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Alternate Designations
 2009 WH6 = 2008 RC51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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