PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/23-21:43:00
G08     320.2          11.6                8.0 +/-   14.47      21.5 +/-   14.47  0.030 / 0.030
G10     304.5          54.1                8.8 +/-    1.05      10.6 +/-    1.05  0.030 / 0.030
G14     211.5          15.3               15.6 +/-    2.89      38.4 +/-    2.89  0.100 / 0.080
G15     46.1           28.8                7.8 +/-    1.93      14.1 +/-    1.93  0.100 / 0.100
G20     3.3            64.9                9.6 +/-    0.79      10.5 +/-    0.79  0.140 / 0.160
G21     109.3          70.9               10.8 +/-    0.82      11.3 +/-    0.82  0.130 / 0.150
G24     89.6           27.6                9.4 +/-    0.97      17.4 +/-    0.97  0.060 / 0.050
G27     296.5          35.3               10.2 +/-    3.71      16.1 +/-    3.71  0.040 / 0.040
G32     212.4          37.5               12.7 +/-    1.59      19.3 +/-    1.59  0.140 / 0.370