PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/06-14:13:00
G02     205.3          31.4                8.7 +/-    1.79      14.8 +/-    1.79  0.100 / 0.310
G03     57.0           9.4                 6.2 +/-    1.46      17.5 +/-    1.46  0.130 / 0.210
G06     153.5          71.3                8.7 +/-    0.45       9.1 +/-    0.45  0.080 / 0.190
G12     309.4          19.8                5.3 +/-    2.94      11.7 +/-    2.94  0.220 / 0.200
G17     38.4           47.1                7.1 +/-    1.41       9.4 +/-    1.41  0.140 / 0.090
G19     352.7          66.2                7.1 +/-    0.36       7.6 +/-    0.36  0.080 / 0.130
G24     294.1          40.3                3.8 +/-    8.19       5.5 +/-    8.19  0.030 / 0.020
G28     103.4          30.9                7.6 +/-    0.90      13.1 +/-    0.90  0.030 / 0.020