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476904 (2008 WK32)
Classification: Apollo [NEO]          SPK-ID: 2476904
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 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3788188955952154 8.4972e-08  
a 1.396122529466619 7.0855e-09 au
q .8672449347384757 1.2092e-07 au
i 15.4520121962509 1.1434e-05 deg
node 58.79184645944913 1.4923e-05 deg
peri 139.8496367523713 1.1777e-05 deg
M 251.5785243264526 1.0234e-05 deg
tp 2459181.966533543362
(2020-Nov-28.46653354)
1.8432e-05 TDB
period 602.5370127991079
1.65
4.5869e-06
1.256e-08
d
yr
n .597473669422575 4.5484e-09 deg/d
Q 1.925000124194762 9.7697e-09 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   # delay obs. used      2  
   # Doppler obs. used      2  
   data-arc span      3700 days (10.13 yr)  
   first obs. used      2008-11-21  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45546  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-22 08:40:33  

Additional Information
 Earth MOID = .068801 au 
 Jupiter MOID = 3.06477 au 
 T_jup = 4.651 
[ 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 19.2   n/a E2016S92  

476904 (2008 WK32)          Discovered 2008-Nov-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-11-20

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