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JPL Small-Body Database Browser
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(2008 WM61)
Classification: Apollo [NEO]          SPK-ID: 3440394
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3334104526077958 3.6472e-08  
a 1.482283371259889 1.8464e-08 au
q .9880746015551198 5.6229e-08 au
i 2.513826050756414 9.3053e-06 deg
node 239.4097647274776 2.3105e-05 deg
peri 199.8382731146081 7.1172e-05 deg
M 349.164934366869 2.8103e-05 deg
tp 2459416.339207846765
(2021-Jul-20.83920785)
5.155e-05 TDB
period 659.1667338863629
1.80
1.2316e-05
3.372e-08
d
yr
n .5461440656713453 1.0205e-08 deg/d
Q 1.976492140964658 2.462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      3288 days (9.00 yr)  
   first obs. used      2008-11-24  
   last obs. used      2017-11-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:19:35  

Additional Information
 Earth MOID = .00936533 au 
 Jupiter MOID = 3.28257 au 
 T_jup = 4.516 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.6   n/a MPO424574  

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