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                9.7 +/-    1.71      20.9 +/-    1.71  0.070 / 0.160
G10     48.0           60.6               10.6 +/-    0.85      12.0 +/-    0.85  0.090 / 0.190
G14     252.1          60.9               11.3 +/-    0.73      12.7 +/-    0.73  0.040 / 0.050
G18     315.1          26.6                8.4 +/-    1.43      15.8 +/-    1.43  0.040 / 0.050
G20     88.1           41.3                9.8 +/-    1.39      13.9 +/-    1.39  0.080 / 0.190
G21     153.4          22.2               11.8 +/-    1.06      24.7 +/-    1.06  0.150 / 0.310
G24     41.7           12.9                7.2 +/-    3.65      18.8 +/-    3.65  0.020 / 0.020
G27     238.2          20.8               12.6 +/-    2.11      27.3 +/-    2.11  0.030 / 0.030
G31     179.3          23.8               11.1 +/-    2.56      22.4 +/-    2.56  0.110 / 0.290
G32     315.7          76.5               10.0 +/-    0.38      10.2 +/-    0.38  0.160 / 0.420