PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-23:43:10
G01     319.6          16.8                6.8 +/-    2.16      16.1 +/-    2.16  0.240 / 0.280
G08     257.0          13.9                7.0 +/-    1.82      17.8 +/-    1.82  0.200 / 0.270
G10     78.0           53.5                9.1 +/-    0.69      11.1 +/-    0.69  0.040 / 0.050
G11     303.5          23.1                6.2 +/-    1.25      12.7 +/-    1.25  0.040 / 0.040
G14     291.4          70.1                6.9 +/-    0.72       7.3 +/-    0.72  0.090 / 0.190
G18     305.1          40.5                6.6 +/-    1.91       9.5 +/-    1.91  0.070 / 0.150
G20     104.2          30.0                7.9 +/-    1.09      13.8 +/-    1.09  0.130 / 0.340
G31     176.2          40.7                9.3 +/-    0.88      13.3 +/-    0.88  0.120 / 0.430
G32     7.1            67.9                6.4 +/-    0.45       6.8 +/-    0.45  0.080 / 0.070