I have 1 VIIRS satellite image and 1 DMSP/OLS image. The VIIRS is a 32bit img while the OLS is a 8bit img. When I try to import the VIIRSs img into ArcMap Desktop (v. 10.5) I cannot see the img. I have checked the histogram of the img and is missing. I do not have that problem with OLSs img. Maybe the problem is with the bit-depth of the VIIRS?