PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-03:27:50
G01     318.8          18.0                9.9 +/-    1.57      22.8 +/-    1.57  0.020 / 0.020
G08     255.7          13.2               10.6 +/-    3.80      27.5 +/-    3.80  0.020 / 0.020
G10     78.6           54.2                8.9 +/-    1.54      10.7 +/-    1.54  0.070 / 0.240
G11     301.5          24.8                8.9 +/-    1.55      17.4 +/-    1.55  0.180 / 0.210
G14     301.9          71.4                9.3 +/-    0.65       9.7 +/-    0.65  0.120 / 0.220
G18     101.2          30.1                8.0 +/-    0.83      14.0 +/-    0.83  0.040 / 0.050
G22     300.3          10.6                0.2 +/-    3.53       0.6 +/-    3.53  0.040 / 0.050
G31     176.9          41.1               10.8 +/-    1.07      15.5 +/-    1.07  0.040 / 0.030
G32     2.8            68.4                8.6 +/-    0.46       9.1 +/-    0.46  0.040 / 0.030