PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-14:57:50
G01     42.7           18.5                6.7 +/-    1.28      15.4 +/-    1.28  0.060 / 0.110
G06     173.6          37.8               12.6 +/-    1.54      19.0 +/-    1.54  0.060 / 0.130
G13     239.9          23.9                8.9 +/-    1.46      17.8 +/-    1.46  0.120 / 0.150
G15     276.8          12.6                7.7 +/-    1.68      20.2 +/-    1.68  0.110 / 0.120
G17     358.3          72.1                9.9 +/-    0.69      10.3 +/-    0.69  0.050 / 0.070
G19     263.9          64.5                8.8 +/-    1.03       9.6 +/-    1.03  0.050 / 0.080
G24     316.9          18.3                6.4 +/-    0.79      14.7 +/-    0.79  0.090 / 0.280
G28     67.5           48.4                8.9 +/-    0.39      11.5 +/-    0.39  0.070 / 0.280
G30     154.3          31.8               13.0 +/-    0.91      22.0 +/-    0.91  0.120 / 0.220