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407230 (2009 WZ24)
Classification: Main-belt Asteroid          SPK-ID: 2407230
[ 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1728579738527164 4.7336e-08  
a 3.118947692509441 2.6424e-08 au
q 2.579812713829654 1.4821e-07 au
i 5.82948624919843 4.617e-06 deg
node 110.793037363069 5.2447e-05 deg
peri 298.0943583003823 5.5209e-05 deg
M 11.40010662053023 1.4078e-05 deg
tp 2459136.788625261641
(2020-Oct-14.28862526)		 7.8719e-05 TDB
period 2011.919332798521
5.51		 2.5567e-05
7e-08		 d
yr
n .1789336153449306 2.2739e-09 deg/d
Q 3.658082671189228 3.0991e-08 au
   Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      6313 days (17.28 yr)  
   first obs. used      2003-09-30  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 17:12:34  

Additional Information
 Earth MOID = 1.59586 au 
 Jupiter MOID = 1.74498 au 
 T_jup = 3.186 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457882.5 (2017-May-09.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1694335936396454 4.6838e-08  
q 2.598775180036156 1.4498e-07 au
tp 2457109.080252970781
(2015-Mar-27.58025297)		 8.9302e-05 TDB
node 111.2108063356607 5.2757e-05 deg
peri 296.1934452190021 5.5747e-05 deg
i 5.807491872588759 4.594e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      6313 days (17.28 yr)  
   first obs. used      2003-09-30  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 17:12:34  

Additional Information
 Jupiter MOID = 1.74498 au 
 T_jup = 3.186 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.193793055573742E-15 -6.710152307733034E-15 -4.396501845995927E-13 -2.741300824871793E-15 -8.259506294677886E-14 -3.612922215221974E-15
q -6.710152307733034E-15 2.101854388276159E-14 7.552086970814009E-13 1.390701031073973E-14 1.734294579910241E-13 1.107268382416848E-14
tp -4.396501845995927E-13 7.552086970814009E-13 7.974903450139372E-9 -2.145966438171035E-11 1.638716379998376E-9 1.744698840704754E-12
node -2.741300824871793E-15 1.390701031073973E-14 -2.145966438171035E-11 2.783295213912406E-9 -2.773510875268222E-9 -2.65425592307934E-11
peri -8.259506294677886E-14 1.734294579910241E-13 1.638716379998376E-9 -2.773510875268222E-9 3.10778054064893E-9 2.672597619015104E-11
i -3.612922215221974E-15 1.107268382416848E-14 1.744698840704754E-12 -2.65425592307934E-11 2.672597619015104E-11 2.110446458474619E-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 16.0   n/a MPO455889  
diameter diameter 4.104 km 0.275 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

407230 (2009 WZ24)          Discovered 2009-Nov-21 by Lowe, A. at Mayhill
Reference: Last Updated: 2014-09-12

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