PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-20:43:10
G01     113.1          22.1               14.6 +/-    1.87      30.5 +/-    1.87  0.080 / 0.090
G07     95.3           63.1               11.8 +/-    0.33      13.1 +/-    0.33  0.110 / 0.080
G08     43.8           29.7               10.2 +/-    1.20      18.0 +/-    1.20  0.120 / 0.160
G09     176.5          20.0               13.1 +/-    1.53      28.8 +/-    1.53  0.100 / 0.180
G11     100.3          42.3               13.3 +/-    0.83      18.7 +/-    0.83  0.130 / 0.160
G13     314.2          24.1               10.1 +/-    1.20      20.1 +/-    1.20  0.110 / 0.160
G17     204.9          27.4               12.9 +/-    0.73      23.8 +/-    0.73  0.020 / 0.030
G18     87.7           23.1               11.2 +/-    2.46      22.9 +/-    2.46  0.030 / 0.030
G28     306.4          59.8               10.8 +/-    0.93      12.3 +/-    0.93  0.030 / 0.040
G30     9.5            75.1               12.1 +/-    0.66      12.5 +/-    0.66  0.030 / 0.040