PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/12-08:27:40
G01     42.8           18.7                3.5 +/-    3.78       8.0 +/-    3.78  0.160 / 0.340
G06     175.6          35.5                5.9 +/-    1.59       9.2 +/-    1.59  0.170 / 0.250
G13     239.9          24.3                6.3 +/-    1.66      12.6 +/-    1.66  0.230 / 0.240
G15     276.5          12.8                3.2 +/-    0.93       8.4 +/-    0.93  0.300 / 0.380
G17     1.9            71.4                6.1 +/-    0.96       6.4 +/-    0.96  0.140 / 0.280
G19     263.5          64.6                5.9 +/-    0.83       6.4 +/-    0.83  0.130 / 0.220
G24     316.2          20.2                1.8 +/-    2.13       3.9 +/-    2.13  0.070 / 0.030
G28     65.5           49.6                5.2 +/-    0.46       6.6 +/-    0.46  0.070 / 0.040
G30     154.2          32.4                5.6 +/-    1.58       9.3 +/-    1.58  0.060 / 0.110