2012-12-13T15:39:54 CHANGE_PERIOD 1
2012-12-13T15:39:56 CHANGE_PERIOD 1
2012-12-13T15:39:56 START_COLLECTION PERIOD 1 GF 0 RF 0 GUAH 0.000000
2012-12-13T15:39:56 BEGIN
2012-12-13T15:42:54 STOP_COLLECTION PERIOD 1 GF 3557 RF 4449 GUAH 4.004366 DUR 178
2012-12-13T15:42:54 END
