PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/26-09:58:10
G08     276.0          19.3                5.1 +/-    0.84      11.4 +/-    0.84  0.150 / 0.250
G10     51.5           60.3                6.5 +/-    0.83       7.3 +/-    0.83  0.140 / 0.290
G14     253.5          59.3                7.3 +/-    1.18       8.4 +/-    1.18  0.050 / 0.060
G18     314.9          26.7                4.6 +/-    1.06       8.7 +/-    1.06  0.040 / 0.060
G20     102.7          11.0                4.4 +/-    1.93      12.0 +/-    1.93  0.410 / 0.260
G21     153.7          20.0                5.4 +/-    1.54      11.9 +/-    1.54  0.340 / 0.410
G24     41.8           13.5                2.6 +/-    4.72       6.8 +/-    4.72  0.230 / 0.370
G27     235.0          18.9                6.0 +/-    4.92      13.4 +/-    4.92  0.090 / 0.550
G31     177.9          27.0                7.1 +/-    0.92      13.3 +/-    0.92  0.170 / 0.220
G32     327.2          75.9                8.0 +/-    0.56       8.2 +/-    0.56  0.150 / 0.230