DMSP 5D-2/F12 > Defense Meteorological Satellite Program-F12 DMSP F12 - Launched August 28, 1994. Instruments: OLS, SSB/X-2, SSI/ES-2, SSJ/4, SSM, SSM/I, SSM/T and SSM/T2. Operational dates: September 8, 1994 - Present.