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441641 (2008 WZ13)
Classification: Apollo [NEO, PHA]          SPK-ID: 2441641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 66 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5605442278552214 6.1405e-08  
a 1.997296924506718 3.8464e-08 au
q .8777236621614916 1.1387e-07 au
i 8.178342301679361 8.0664e-06 deg
node 51.94949872374994 5.5832e-05 deg
peri 133.6502686336839 5.5935e-05 deg
M 326.7766793506092 2.7425e-05 deg
tp 2459095.648711998844
(2020-Sep-03.14871200)
8.1244e-05 TDB
period 1031.008810981449
2.82
2.9783e-05
8.154e-08
d
yr
n .3491725736633666 1.0087e-08 deg/d
Q 3.116870186851946 6.0025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      3993 days (10.93 yr)  
   first obs. used      2008-11-20  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34658  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-28 06:14:54  

Additional Information
 Earth MOID = .0101502 au 
 Jupiter MOID = 1.86537 au 
 T_jup = 3.621 
[ show covariance matrix ]

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 18.6   n/a MPO235392  

441641 (2008 WZ13)          Discovered 2008-Nov-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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