PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-23:13:00
G08     270.1          20.0                7.3 +/-    2.54      16.2 +/-    2.54  0.120 / 0.200
G10     53.1           59.7                7.3 +/-    0.59       8.3 +/-    0.59  0.100 / 0.240
G14     256.8          63.0                7.0 +/-    0.62       7.8 +/-    0.62  0.050 / 0.050
G18     314.1          29.1                7.9 +/-    2.39      14.1 +/-    2.39  0.040 / 0.070
G20     90.8           39.6                9.0 +/-    0.38      13.2 +/-    0.38  0.160 / 0.320
G21     153.9          19.4               10.8 +/-    1.86      24.1 +/-    1.86  0.160 / 0.370
G24     40.3           10.9                7.1 +/-    2.66      19.3 +/-    2.66  0.130 / 0.330
G27     236.4          19.2               11.0 +/-    1.09      24.8 +/-    1.09  0.150 / 0.350
G31     179.1          25.9               10.5 +/-    1.69      20.2 +/-    1.69  0.080 / 0.250
G32     325.4          75.9                8.2 +/-    0.57       8.4 +/-    0.57  0.130 / 0.230