We present the spectroscopic and imaging analysis of Type IIn supernova SN
1995N observed with the Chandra X-Ray Observatory on 2004 March 27. We
detect Neon lines in the spectrum and compare our observations with
previous ASCA and ROSAT observations of the SN. We find presence of an
extra absorption column depth, which indicates possiblly a cool dense shell
between the reverse shock and the contact discontinuity in the
ejecta. With the higher spatial resolution and sensitivity of Chandra, we
separate out many nearby sources in the supernova field of view that had
additionally contributed to the supernova flux in the previous ASCA
observations due to the large point-spread function of ASCA, indicating
presence of a non-linear behaviour of the X-ray light curve. Taking out
these extra contributions, the SN light curve seems to be consistent with
the linear declining flux. We discuss results in the context of models of
nucleosynthesis and the interaction of the shock waves with the
circumstellar medium in core-collapse supernovae.