2012-12-13T15:46:51 CHANGE_PERIOD 1
2012-12-13T15:46:53 CHANGE_PERIOD 1
2012-12-13T15:46:54 START_COLLECTION PERIOD 1 GF 0 RF 0 GUAH 0.000000
2012-12-13T15:46:54 BEGIN
2012-12-13T15:49:52 STOP_COLLECTION PERIOD 1 GF 3556 RF 4449 GUAH 4.003566 DUR 178
2012-12-13T15:49:52 END
