PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-00:12:50
G08     272.9          20.8                8.0 +/-    1.74      17.2 +/-    1.74  0.070 / 0.140
G10     48.0           60.6               10.3 +/-    0.74      11.6 +/-    0.74  0.090 / 0.150
G14     252.1          60.9               10.7 +/-    0.73      12.1 +/-    0.73  0.020 / 0.040
G18     315.1          26.6                6.5 +/-    3.39      12.3 +/-    3.39  0.020 / 0.040
G20     88.1           41.3               10.2 +/-    0.59      14.5 +/-    0.59  0.120 / 0.220
G21     153.4          22.2               12.1 +/-    1.61      25.4 +/-    1.61  0.110 / 0.200
G24     41.7           12.9                7.2 +/-    1.47      18.9 +/-    1.47  0.040 / 0.060
G27     238.2          20.8               12.4 +/-    2.56      26.7 +/-    2.56  0.040 / 0.060
G31     179.3          23.8               12.3 +/-    1.56      24.6 +/-    1.56  0.090 / 0.130
G32     315.7          76.5               10.4 +/-    0.72      10.7 +/-    0.72  0.110 / 0.200