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(2005 WD)
Classification: Apollo [NEO, PHA]          SPK-ID: 3303213
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5603159416932622 3.9354e-08  
a 2.308377751483843 7.2263e-09 au
q 1.014956897877398 8.7999e-08 au
i 26.15426281754027 2.2846e-05 deg
node 227.6678684631761 5.088e-06 deg
peri 161.0079187735509 4.1413e-05 deg
M 60.71513075777663 9.5406e-06 deg
tp 2458784.450542293785
(2019-Oct-27.95054229)
3.4848e-05 TDB
period 1281.028366463255
3.51
6.0153e-06
1.647e-08
d
yr
n .2810242219646635 1.3196e-09 deg/d
Q 3.601798605090287 1.1275e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      5112 days (14.00 yr)  
   first obs. used      2005-11-19  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36373  
   source      ORB  
   producer      Giorgini  
   solution date      2019-Dec-13 09:27:40  

Additional Information
 Earth MOID = .0436204 au 
 Jupiter MOID = 1.93362 au 
 T_jup = 3.245 
[ 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 21.9   n/a MPO243089  
rotation period rot_per 2.927 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]

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