$ ls
us_ssmv01025SlL00T0024TTNATS2018120105DP001.dat
us_ssmv01025SlL01T0024TTNATS2018120105DP001.dat
us_ssmv11034tS__T0001TTNATS2018120105HP001.dat
us_ssmv11034tS__T0001TTNATS2018120105HP001.hdr
us_ssmv11036tS__T0001TTNATS2018120105HP001.dat
us_ssmv11038wS__A0024TTNATS2018120105DP001.dat
us_ssmv11039lL00T0024TTNATS2018120105DP000.dat
us_ssmv11044bS__T0024TTNATS2018120105DP000.dat

$ gdal_translate -of GTiff -a_srs '+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs' -a_nodata -9999 -a_ullr  -124.73333333 52.87500000 -66.94166667 24.95000000 us_ssmv11034tS__T0001TTNATS2018120105HP001.dat us_ssmv11034tS__T0001TTNATS2018120105HP001.dat