Summary of Available Files

The XRT calibration files available under the

/caldb/data/asca/xrt/type

directory tree are listed in Table 2.1. In many cases the actually files will be stored in sub-directories under this tree, as detailed in the corresponding detailed description.

Table 2.1: Summary of ASCA XRT calibration files available within the OGIP Caldb

Filename	Description	Section
Basic Calibration Files (type = bcf)
astrod_image_#_#.fits	XRT 2-D psfs from ray tracing simulations	2.5.2
on_axis_eff_area_010193.fits	on-axis effective area	2.2.1
psf_sm2_#_#.fits	XRT 2-D psfs from Cyg X-1 observations	2.5.3
xrt_alum_trans_05.fits	Al transmission	2.3.1
xrt_ea.fits	Effective areas	2.2.4
xrt_ea_110494.fits	Effective areas	2.2.5
xrt_ea_v1_1.fits	Effective areas	2.2.6
xrt_ea_v2_0.fits	Effective areas	2.2.7
xrt_eef_220693.fits	Encircled Energy Fractions from ray tracing	2.6.1
xrt_kunieda930507.ear	Effective areas	2.2.3
xrt_lalit930330.ear	Effective areas	2.2.2
xrt_psf_isas1.fits	Virtual file for ISAS 2-d psf parameterization	2.5.1
xrt_psf_v1_0.fits	Radial Point Spread Function dataset	2.7.1
xrt_psf_v2_0.fits	Radial Point Spread Function dataset	2.7.2
xrt_vignet1.fits	Virtual file for theoret vignetting function	2.4.1
Calibration Product Files (type = cpf)
None