PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-14:58:10
G01     40.5           15.5                8.8 +/-    2.88      21.7 +/-    2.88  0.070 / 0.130
G06     172.5          42.3               12.8 +/-    1.24      18.0 +/-    1.24  0.060 / 0.140
G13     236.3          21.2               12.3 +/-    2.49      26.3 +/-    2.49  0.080 / 0.080
G15     273.1          11.4                8.3 +/-    2.91      22.4 +/-    2.91  0.060 / 0.060
G17     6.8            68.7                9.2 +/-    1.27       9.8 +/-    1.27  0.150 / 0.270
G19     273.9          66.9                7.5 +/-    0.67       8.0 +/-    0.67  0.150 / 0.310
G24     315.5          21.7                6.3 +/-    2.08      13.3 +/-    2.08  0.070 / 0.210
G28     73.0           46.4                8.0 +/-    1.61      10.5 +/-    1.61  0.090 / 0.210
G30     155.4          27.7               11.0 +/-    1.51      20.2 +/-    1.51  0.110 / 0.230