XMM-Newton Science Analysis System


esensmap (esensmap-4.0) [xmmsas_20230412_1735-21.0.0]

Algorithm

   subroutine esensmap
     Loop over image pixels: 
       Loop over input images:
         IF detection mask == 1
           Accumulate background in 3 x 3 pixel detection cell 
           Determine exposure in detection cell
         END IF             
       END Loop

       Evaluate cumulative Poissonian distribution  
       Subtract background and divide by exposure
       Correct for fraction of PSF outside of the detection cell

       IF exposure in pixel /= 0: Write result to output sensitivity map
     END Loop
 end subroutine  esensmap