psf_#_#.fits

Next: CPF: GIS Detector Redistribution Up: BCF: GIS 2-D Point Previous: BCF: GIS 2-D Point Contents

psf_#_#.fits

$\fbox{Location}$

caldb/data/asca/gis/bcf/psf

$\fbox{Status}$

Unknown

$\fbox{Summary of Files}$

A total of 11 files representing 11 pointings at Cyg X-1 carried out during the AO phase of the mission. Each file consists of a 10 2-dimensional (63x63) Point Spread Function images, one at each of 10 energy ranges.

The file naming convention used is:

psf_

_

.fits

where

represents the off-axis angle (THETA in arcmins) of the pointing.
represents the azimuthal angle (PHI in degrees) of the pointing.

It should be noted that the set of pointing positions do not form a regular grid.

$\fbox{Delivered to CALDB by:}$

Keith Arnaud (NASA/GSFC ASCA GOF) 1995 Feb 14.

$\fbox{File Format}$

HDUDOC/VERS = CAL/GEN/92-027/1.0.0
(see CAL/GEN/92-027, available on-line as postscript and html versions).

$\fbox{Input Datasets, Assumptions, {\it etc}}$

These files were converted to OGIP format by Keith Arnaud (NASA/GSFC ASCA GOF) from an original file (allpsf.fits) provided by Maxim Markevitch (ISAS). The background was subtracted, the images were then normalized to have 1 photon within the 6 arcmin off-peak radius.

$\fbox{Points to Note}$

The peak brightness is at the center of the pixel (32,32). in all cases.

Next: CPF: GIS Detector Redistribution Up: BCF: GIS 2-D Point Previous: BCF: GIS 2-D Point Contents

Mike Corcoran 2001-08-30