PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-14:42:50
G01     115.2          20.7               12.6 +/-    2.17      27.1 +/-    2.17  0.080 / 0.130
G07     91.0           64.2               10.6 +/-    0.83      11.6 +/-    0.83  0.050 / 0.100
G08     43.4           27.6                7.8 +/-    2.21      14.4 +/-    2.21  0.040 / 0.030
G09     175.5          20.4               13.0 +/-    1.65      28.3 +/-    1.65  0.040 / 0.030
G11     100.5          41.4               10.9 +/-    0.42      15.5 +/-    0.42  0.060 / 0.050
G13     315.3          22.9                7.1 +/-    2.14      14.5 +/-    2.14  0.060 / 0.050
G17     203.0          28.6               13.6 +/-    2.00      24.5 +/-    2.00  0.120 / 0.190
G18     89.4           22.4                9.6 +/-    1.25      20.0 +/-    1.25  0.090 / 0.170
G28     301.0          58.9               10.5 +/-    0.62      12.0 +/-    0.62  0.050 / 0.040
G30     354.1          72.0               11.7 +/-    0.65      12.2 +/-    0.65  0.040 / 0.030