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227468 (2005 WJ135)
Classification: Main-belt Asteroid          SPK-ID: 2227468
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1071398304458587 4.1508e-08  
a 2.723951928552779 1.8178e-08 au
q 2.432108180784964 1.1136e-07 au
i 13.35875206708188 5.2884e-06 deg
node 104.1690284152657 1.9612e-05 deg
peri 66.6278262803912 3.6914e-05 deg
M 69.96882395215938 2.8071e-05 deg
tp 2458881.346465153466
(2020-Feb-01.84646515)
0.00012806 TDB
period 1642.092378504331
4.50
1.6437e-05
4.5e-08
d
yr
n .2192324894217579 2.1945e-09 deg/d
Q 3.015795676320593 2.0125e-08 au
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      6701 days (18.35 yr)  
   first obs. used      2002-01-19  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52926  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:53  

Additional Information
 Earth MOID = 1.47506 au 
 Jupiter MOID = 2.09013 au 
 T_jup = 3.310 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457353.5 (2015-Nov-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1083161381016087 4.1429e-08  
q 2.428950493421234 1.1148e-07 au
tp 2457237.952812812758
(2015-Aug-03.45281281)
0.00012775 TDB
node 104.1896783148922 1.9614e-05 deg
peri 66.3719477981129 3.6619e-05 deg
i 13.35890436193841 5.2885e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      6701 days (18.35 yr)  
   first obs. used      2002-01-19  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52926  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:53  

Additional Information
 Jupiter MOID = 2.09013 au 
 T_jup = 3.310 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.71640345254246E-15 -4.570336415981363E-15 2.247538681180655E-13 5.081764240977856E-15 8.488135950070282E-14 -6.029743253664444E-15
q -4.570336415981363E-15 1.242719187466808E-14 -9.027092337390231E-13 -1.24991306823897E-14 -2.961219027114674E-13 1.682890577481281E-14
tp 2.247538681180655E-13 -9.027092337390231E-13 1.631891731788774E-8 -1.784908538580937E-11 3.967793641239337E-9 -3.498310944656756E-12
node 5.081764240977856E-15 -1.24991306823897E-14 -1.784908538580937E-11 3.846905548745702E-10 -3.78034765015024E-10 -6.350206804201868E-12
peri 8.488135950070282E-14 -2.961219027114674E-13 3.967793641239337E-9 -3.78034765015024E-10 1.340934866002991E-9 5.210532060706594E-12
i -6.029743253664444E-15 1.682890577481281E-14 -3.498310944656756E-12 -6.350206804201868E-12 5.210532060706594E-12 2.796847212056852E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.58   n/a E2021B55  

227468 (2005 WJ135)          Discovered 2005-Nov-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2005 WJ135 = 2002 BZ28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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