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 +/-    0.95       9.0 +/-    0.95  0.120 / 0.150
G11     286.7          27.7                4.5 +/-    1.23       8.3 +/-    1.23  0.070 / 0.160
G14     345.9          69.2                4.7 +/-    0.94       5.0 +/-    0.94  0.110 / 0.290
G18     283.3          50.0                4.7 +/-    1.17       5.9 +/-    1.17  0.100 / 0.270
G20     117.2          17.8                5.1 +/-    2.54      11.7 +/-    2.54  0.050 / 0.050
G22     309.0          25.7                2.9 +/-    1.50       5.6 +/-    1.50  0.050 / 0.040
G25     86.9           14.4                4.3 +/-    2.65      10.7 +/-    2.65  0.040 / 0.040
G31     171.0          58.5                7.3 +/-    0.31       8.4 +/-    0.31  0.040 / 0.050
G32     23.3           59.9                4.1 +/-    1.12       4.6 +/-    1.12  0.110 / 0.190