year mo zed etazed eta
1957 02 6.99608520702088 3.94190855242657 6.99608520702088
1957 03 10.3564507551527 7.33488919581878 10.3564507551527
1957 04 11.1792748561168 7.54444608643027 11.1792748561168
1957 05 12.8390231017107 9.09435516179649 12.8390231017107
1957 06 19.4320424988014 15.8412265510852 19.4320424988014
1957 07 20.6295141557792 16.9275605790134 20.6295141557792
1957 08 18.4171567753533 14.807581444739 18.4171567753533
1957 09 15.8451591832041 12.4609436499794 15.8451591832041
1957 10 10.9070689478601 8.49095305077637 10.9070689478601
1957 11 6.19407849031975 3.75603598179737 6.19407849031975
1957 12 2.17149545215735 -0.0566236199599324 2.17149545215735
