effarea#.ear

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effarea#.ear

$\fbox{Location}$

caldb/data/cosb/sc/cpf

$\fbox{Summary of Files}$

The COS-B effective area matrix file is in the standard effective area matrix FITS format for X-ray astronomy (see the document CAL/GEN/92-019). The effective area is given for 115 energy channels and out to an zenith angle of 30 degrees in 0.5 degree increments.

To accommodate the sensitivity of the spark-chamber to $e^\pm$ -pair angle selection, seven files have been made for pair angles less than 4, 6, 8, 10, 12, 20, and 90 degrees.

$\fbox{Delivered to CALDB by:}$

Brenden Perry (HEASARC)

$\fbox{ File Format}$

HDUDOC/VERS = CAL/GEN/92-019/1.0.0
(see CAL/GEN/92-019, available on-line as postscript and html versions).

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

No information supllied to the CALDB other than that above.

$\fbox{Points to Note}$

None

Mike Corcoran 2001-08-30