PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-10:12:40
G10     100.4          42.5                6.5 +/-    0.43       9.1 +/-    0.43  0.080 / 0.190
G11     286.7          27.7                4.8 +/-    1.20       8.8 +/-    1.20  0.080 / 0.170
G14     345.9          69.2                4.5 +/-    0.91       4.8 +/-    0.91  0.080 / 0.150
G18     283.3          50.0                5.5 +/-    0.94       7.0 +/-    0.94  0.070 / 0.150
G20     117.2          17.8                5.6 +/-    1.57      13.0 +/-    1.57  0.050 / 0.060
G22     309.0          25.7                3.4 +/-    1.28       6.5 +/-    1.28  0.040 / 0.050
G25     86.9           14.4                4.1 +/-    0.86      10.4 +/-    0.86  0.040 / 0.060
G31     171.0          58.5                8.5 +/-    1.22       9.8 +/-    1.22  0.040 / 0.050
G32     23.3           59.9                4.7 +/-    0.61       5.4 +/-    0.61  0.080 / 0.200