The USGS / NOAA moved pages and files
the 32 bit VIIRS data used has moved ? someplace
http://maps.ngdc.noaa.gov/viewers/dmsp_gcv4/the mapserver page has this folder
http://mapserver.ngdc.noaa.gov/viirs/the updates are here
http://mapserver.ngdc.noaa.gov/viirs/cspphttp://mapserver.ngdc.noaa.gov/viirs/cs ... /geotiffs/like "d20150301_t0620483_e0630452_b17307"

they are a mix of clouded and cloud-free
but the data is VERY noisy
and the servers can be VERY SLOW ( dial up speed )
the links i posted in the first post i left in isis cub format after histogram matching
they are B&W and of limited use
those that CAN use them ,already know how to convert them to other formats
( isis3 or gdal )
the colorized are in ppm format
these open FAST in most editors