XMM-Newton Science Analysis System


mssllib (mssllib-2.83) [xmmsas_20230412_1735-21.0.0]

subroutine pointsourcephotometry4

1. Added on 03.04.09
2. Purpose to perform aperture photometry using an exposure image.
3. Input parameters
   • exposureConstant The median value of the exposure image that each image pixel has been multiplied by.
   • radius - photometry aperture radius
   • Image (real 32) The 2-d image to be used for the photometry
   • Exposure image (real 32) The 2-d exposure image to be used for the photometry
4. Input/output variables
   • source - On input structure contains the source coordinates and various other parameters computed by omdetect. On output it will have its photometric raw count-rate components set.