PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-03:42:40
G08     275.3          21.0                8.5 +/-    2.71      18.2 +/-    2.71  0.080 / 0.130
G10     44.8           61.1                7.3 +/-    1.10       8.2 +/-    1.10  0.070 / 0.190
G14     249.1          58.5                8.1 +/-    0.71       9.3 +/-    0.71  0.110 / 0.190
G18     315.8          24.5                6.8 +/-    1.59      13.5 +/-    1.59  0.110 / 0.170
G20     67.8           59.0                9.5 +/-    1.21      10.9 +/-    1.21  0.040 / 0.060
G21     153.2          24.4                8.3 +/-    2.03      16.5 +/-    2.03  0.040 / 0.050
G24     42.9           14.8                6.8 +/-    1.81      16.9 +/-    1.81  0.340 / 0.240
G27     238.5          21.5               10.6 +/-    1.31      22.4 +/-    1.31  0.300 / 0.230
G31     178.5          23.7                9.4 +/-    1.41      19.0 +/-    1.41  0.240 / 0.330
G32     312.6          76.8                7.7 +/-    0.54       7.8 +/-    0.54  0.160 / 0.240