SIRTF IRAC PSF Test Data, Cosmic Ray Data

 Cosmic Ray map
  - SSC criteria:  >5 sigma above local bkg
    0 = OK
    1 = CR hit 

Cosmic rays were added to 0.003% of the pixels chosen randomly. In the cosmic ray mask, those pixels were assigned a value of "1". In the image, the pixels were assigned a random value between 0 and 30,000 counts (we should change this to reflect SSC criteria better). If greater than 4096, the value was reassigned to 4096.