  We present the X-ray analysis and the mass estimation of the lensing cluster
of galaxies CL0024+17 with Chandra. We found that the temperature profile is
consistent with being isothermal and the average X-ray temperature is 4.47
(+0.83, -0.54) keV. The X-ray surface brightness profile is represented by the
sum of emissions associated with the central three bright elliptical galaxies
and the emission from intracluster medium (ICM) which can be well described by
a spherical beta-model. Assuming the ICM to be in the hydrostatic equilibrium,
we estimated the X-ray mass and found it is significantly smaller than the
strong lensing mass by a factor of 3.
