PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-08:27:50
G01     109.2          24.3                7.0 +/-    1.11      13.8 +/-    1.11  0.030 / 0.030
G07     104.3          58.8                7.7 +/-    0.62       8.9 +/-    0.62  0.020 / 0.030
G08     41.7           20.0                2.8 +/-    2.36       6.1 +/-    2.36  0.030 / 0.030
G09     171.8          11.0                5.7 +/-    3.74      15.6 +/-    3.74  0.040 / 0.040
G11     89.9           42.4                7.0 +/-    1.30       9.8 +/-    1.30  0.080 / 0.140
G13     311.0          27.7                3.0 +/-    1.98       5.5 +/-    1.98  0.080 / 0.150
G17     204.2          37.7                6.5 +/-    1.10       9.8 +/-    1.10  0.070 / 0.130
G18     80.7           23.5                6.2 +/-    1.76      12.5 +/-    1.76  0.090 / 0.170
G28     311.3          60.1                5.4 +/-    1.10       6.1 +/-    1.10  0.210 / 0.480
G30     7.2            76.3                5.6 +/-    1.00       5.7 +/-    1.00  0.140 / 0.480