PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-03:28:00
G05     47.7           19.0                4.5 +/-    2.49      10.2 +/-    2.49  0.360 / 0.470
G13     81.3           36.5                9.6 +/-    0.99      14.8 +/-    0.99  0.320 / 0.700
G15     130.4          49.5               10.5 +/-    0.55      13.3 +/-    0.55  0.080 / 0.070
G16     316.8          11.4                3.5 +/-   14.93       9.5 +/-   14.93  0.090 / 0.060
G20     249.5          49.2               10.7 +/-    3.04      13.6 +/-    3.04  0.130 / 0.160
G21     308.9          43.9                8.4 +/-    1.06      11.5 +/-    1.06  0.110 / 0.110
G25     202.0          14.3               11.7 +/-    1.08      29.6 +/-    1.08  0.060 / 0.070
G26     290.3          21.1                8.6 +/-    3.95      18.5 +/-    3.95  0.080 / 0.080
G29     152.0          77.9               10.1 +/-    0.32      10.3 +/-    0.32  0.180 / 0.300