PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-15:12:40
G01     40.2           14.9                7.9 +/-    3.30      19.6 +/-    3.30  0.070 / 0.140
G06     172.3          43.1               11.2 +/-    0.73      15.6 +/-    0.73  0.080 / 0.140
G13     235.7          20.7               12.5 +/-    3.84      27.0 +/-    3.84  0.180 / 0.140
G15     272.3          11.1               11.2 +/-    1.98      30.4 +/-    1.98  0.120 / 0.120
G17     7.8            68.2                9.4 +/-    0.38      10.0 +/-    0.38  0.170 / 0.390
G19     276.1          67.3                9.9 +/-    0.97      10.6 +/-    0.97  0.130 / 0.380
G24     315.3          22.3                9.5 +/-    3.46      19.8 +/-    3.46  0.260 / 0.450
G28     74.0           46.0                8.9 +/-    0.62      11.8 +/-    0.62  0.150 / 0.340
G30     155.6          26.9               10.5 +/-    1.29      19.7 +/-    1.29  0.070 / 0.080