MVP_*.txt = Conductivity, Temperature Depth (CTD) and Opitcal Backscatter (OBS) data 

Raw 2 = time of acquisition
Raw 3 = date of acquisition
Raw 7 = Bottom (seafloor) depth in metres  
Raw 9 = Latitude
Raw 10 = Longitude 
Raw 11 = time of acquisition
Raw 12 = date of acquisition

CTD and OBS Data starts from raw 35, delimitor = space:
Number 1 = depth in m
Number 2 = salinity in PSU
Number 3 = temperature in degree celsius
Number 4 = High gain voltage in volts
Number 5 = Low gain voltage in volts