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226569 (2003 WW189)
Classification: Outer Main-belt Asteroid          SPK-ID: 2226569
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720079011576784 5.147e-08  
a 3.233868376426758 4.1361e-08 au
q 2.677617464377402 1.7574e-07 au
i 18.5804425524978 7.5171e-06 deg
node 315.4702785748642 1.7557e-05 deg
peri 115.7822574565966 2.8818e-05 deg
M 277.7463228807295 2.1713e-05 deg
tp 2459485.827340163987
(2021-Sep-28.32734016)
0.00013139 TDB
period 2124.134124796495
5.82
4.0751e-05
1.116e-07
d
yr
n .1694808231728258 3.2515e-09 deg/d
Q 3.790119288476114 4.8475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      7810 days (21.38 yr)  
   first obs. used      1999-03-13  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 16:02:29  

Additional Information
 Earth MOID = 1.75164 au 
 Jupiter MOID = 1.61081 au 
 T_jup = 3.081 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457095.5 (2015-Mar-14.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1697700311676424 5.0313e-08  
q 2.688550480929792 1.7089e-07 au
tp 2457346.278709421732
(2015-Nov-19.77870942)
0.00012506 TDB
node 316.0381983548152 1.7572e-05 deg
peri 113.5811735111291 2.9379e-05 deg
i 18.53919763270209 7.5163e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      7810 days (21.38 yr)  
   first obs. used      1999-03-13  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 16:02:29  

Additional Information
 Jupiter MOID = 1.61081 au 
 T_jup = 3.081 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.531383480821699E-15 -8.427673171966593E-15 5.938673701143451E-13 -1.561813610118839E-14 1.45042981205243E-13 -1.140327392064248E-14
q -8.427673171966593E-15 2.920362930043038E-14 -1.305906638311887E-12 6.116683321559636E-14 -4.008189486574737E-13 4.719864364322514E-14
tp 5.938673701143451E-13 -1.305906638311887E-12 1.563934659221285E-8 2.370462019091364E-11 2.968876982736513E-9 -1.049728479890248E-12
node -1.561813610118839E-14 6.116683321559636E-14 2.370462019091364E-11 3.087662864926422E-10 -2.882832315845325E-10 3.940205121555392E-12
peri 1.45042981205243E-13 -4.008189486574737E-13 2.968876982736513E-9 -2.882832315845325E-10 8.631378234730154E-10 -4.641957517268194E-12
i -1.140327392064248E-14 4.719864364322514E-14 -1.049728479890248E-12 3.940205121555392E-12 -4.641957517268194E-12 5.649450723257328E-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 15.2   n/a MPO475855  
diameter diameter 5.088 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226569 (2003 WW189)          Discovered 2003-Nov-24 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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