PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-16:42:40
G01     114.6          21.1               11.0 +/-    0.73      23.6 +/-    0.73  0.090 / 0.130
G07     92.1           64.0               11.4 +/-    0.76      12.6 +/-    0.76  0.060 / 0.110
G08     43.5           28.3                8.8 +/-    0.63      16.0 +/-    0.63  0.030 / 0.040
G09     176.0          20.6               10.4 +/-    1.03      22.7 +/-    1.03  0.030 / 0.050
G11     100.5          41.7               11.8 +/-    0.67      16.7 +/-    0.67  0.090 / 0.110
G13     315.0          23.3                9.3 +/-    1.46      18.8 +/-    1.46  0.050 / 0.140
G17     203.7          27.9               12.9 +/-    1.05      23.6 +/-    1.05  0.030 / 0.040
G18     89.1           22.6                9.0 +/-    1.15      18.7 +/-    1.15  0.030 / 0.030
G28     302.5          59.2               11.5 +/-    0.70      13.2 +/-    0.70  0.060 / 0.140
G30     357.9          72.9               12.6 +/-    1.11      13.1 +/-    1.11  0.050 / 0.100