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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1721560607878798 4.7687e-08  
a 2.929048276968153 1.841e-08 au
q 2.424794863747789 1.3803e-07 au
i 13.43617627512385 3.9653e-06 deg
node 88.02878857208417 2.2346e-05 deg
peri 78.8227469564511 2.5365e-05 deg
M 239.109089195322 1.3695e-05 deg
tp 2459615.364431001544
(2022-Feb-04.86443100)
7.2769e-05 TDB
period 1830.999482816293
5.01
1.7262e-05
4.726e-08
d
yr
n .1966139277364937 1.8537e-09 deg/d
Q 3.433301690188517 2.1579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1155  
   data-arc span      6938 days (19.00 yr)  
   first obs. used      2000-11-01  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50354  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 14:04:08  

Additional Information
 Earth MOID = 1.47576 au 
 Jupiter MOID = 1.76887 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. 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:
[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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