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118938 (2000 WM47)
Classification: Main-belt Asteroid          SPK-ID: 2118938
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .172065665419373 4.0471e-08  
a 2.929777933977322 1.5886e-08 au
q 2.425663744236518 1.211e-07 au
i 13.43541711649938 3.8664e-06 deg
node 88.03151492720887 1.7721e-05 deg
peri 78.74004105312235 2.1446e-05 deg
M 278.5060077155404 1.3131e-05 deg
tp 2459615.142272024305
(2022-Feb-04.64227202)
6.8418e-05 TDB
period 1831.68370752668
5.01
1.4898e-05
4.079e-08
d
yr
n .1965404826830651 1.5986e-09 deg/d
Q 3.433892123718126 1.862e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1477  
   data-arc span      7437 days (20.36 yr)  
   first obs. used      2000-11-01  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47754  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:59:35  

Additional Information
 Earth MOID = 1.47634 au 
 Jupiter MOID = 1.76759 au 
 T_jup = 3.214 
[ 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 13.7   n/a MPO417619  
rotation period rot_per 7.575 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

118938 (2000 WM47)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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