>Tristan Cools <tcools@nic.INbe.net> asked regarding 1.9-second period >flashes exhibited by more than one DMSP satellite: > >>Any idea were those flashes are comming from ? >> >>I have checked the PPAS database and found two other DMSP Block 5D--2 >>satellites with the same flash period of 1.9s: > >I believe that I have found the answer. This is from the "Defense >Meteorological Satellite Program Technical Review" at: > > http://psbsgi1.nesdis.noaa.gov:8080/EBB/pubs/sympos/symp2.html > >> "2. DMSP ELECTRO-OPTICAL AND MICROWAVE SENSORS" >> >> "2.2. Special Sensor Microwave Imager (SSM/1) - The SSM/I instrument >> measures the microwave radiation from the earth's atmosphere and >> surface. ... Thanks Ed for the info ! I have searched for this info for a long time. The SSM was, as I told Mike, a prime suspect to me. Now we know for sure ! Greetings, Tristan Cools tcools@nic.INbe.net BWGS member(Belgian Working Group Satellites) Damse Vaart: 3.2478E/51.2277N 3.75m Rijckevelde: 3.2856E/51.2045N 6.25m Brugge : 3.2166E/51.2104N 5m