PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-09:27:50
G01     39.7           13.9                3.2 +/-    2.96       8.2 +/-    2.96  0.060 / 0.060
G02     199.1          11.9                2.1 +/-    4.35       5.6 +/-    4.35  0.050 / 0.070
G06     177.4          39.8                9.1 +/-    1.18      13.3 +/-    1.18  0.190 / 0.250
G13     236.5          20.0                6.3 +/-    2.93      14.0 +/-    2.93  0.290 / 0.250
G15     267.9          11.4                5.1 +/-    1.17      13.8 +/-    1.17  0.020 / 0.020
G17     11.3           66.7                4.8 +/-    0.42       5.1 +/-    0.42  0.030 / 0.030
G19     292.3          71.4                5.5 +/-    0.38       5.8 +/-    0.38  0.140 / 0.210
G24     316.1          20.6                2.8 +/-    2.13       6.1 +/-    2.13  0.130 / 0.270
G28     76.6           44.7                6.0 +/-    0.75       8.1 +/-    0.75  0.160 / 0.180
G30     155.2          24.0                8.5 +/-    1.09      17.0 +/-    1.09  0.190 / 0.190