Name: obs_flash_head  --  15 second head transition into campaign with CCD flashes
         Time    CAL1     CAL2       PAW      Dir       IP
 N   ID   Fr1  Dir  Pos  Dir  Pos  Dir  Pos  M1  M2    Addr
  4, 1D3, 80,   -,   -,   -,   -,   -,   -,   -,   -,   7
 
     MTM1 MTM2 CAL1 CAL2 PAW                          DMA
 Time  Pos  Pos  Pos  Pos Pos  IType  Exp  OFP    0   1   2   3
 -456,  29,  42,   0,   0,   0,   H,   7,   0,   3,   3,   3,   3
 -360,  29,  42,   0,   0,   0,   H,   5,   0,   3,   3,   3,   3
 -312,  29,  42,   0,   0,   0,   H,   5,   0,   3,   3,   3,   3
 -264,  29,  42,   2,   1,   0,   F,   5,   0,   3,   3,   3,   3