Data, wherefore art thou?

2001-03-25 08:56 2451994.3722222 1008.1 51.0 50.0 140 6.0 NA 8 50 10 NA 96.4 NA M M M M M M M M
2001-03-25 09:56 2451994.4138889 1008.4 51.0 50.0 160 7.0 NA 8 55 10 NA 96.4 NA M M M M M M M M
2001-03-25 10:56 2451994.4555556 1009.3 51.0 50.0 210 7.0 NA 8 49 8 NA 96.4 NA M M M M M M M M

2001-03-25 11:56 2451994.4972222 1010.4 50.0 49.0 220 8.0 NA 8 44 9 NA 96.3 0.30 53 50 M 38.8 M 30 M M Save old
2001-03-25 11:56 2451994.4972222 1017.4 80.0 49.0 220 8.0 NA 8 44 9 NA 96.3 0.30 53 50 M 38.8 M 30 M M Save new

2001-03-25 12:56 2451994.5388889 1011.0 49.0 48.0 190 10.0 NA 8 20 10 NA 96.3 NA M M M M M M M M
2001-03-25 13:01 2451994.5423611 NA 48.0 48.0 180 12.0 NA 8 46 10 NA 100.0 NA M M M M M M M M
2001-03-25 13:56 2451994.5805556 1011.7 49.0 47.0 190 8.0 NA 8 47 10 NA 92.8 NA M M M M M M M M