Time (min)	PL signal
1405	18323
1435	18332
1480	18354
1540	18682
1580	18681
1600	18634
1645	18659
1670	18921
1705	18927
1752	19461
1795	19439
1820	19345
1885	19854
1920	19862
2005	19879
2090	19870
2145	20232
2160	20245
2210	20326
2250	20489
2335	20479