PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-08:27:50
G01     106.7          24.4                4.9 +/-    1.06       9.8 +/-    1.06  0.040 / 0.040
G07     105.6          57.7                7.0 +/-    0.74       8.1 +/-    0.74  0.040 / 0.030
G08     42.3           23.5                2.3 +/-    1.17       4.6 +/-    1.17  0.040 / 0.050
G09     174.3          14.3                6.5 +/-    1.48      16.4 +/-    1.48  0.040 / 0.040
G11     92.7           44.3                7.4 +/-    0.41      10.0 +/-    0.41  0.080 / 0.180
G13     310.0          29.1                3.7 +/-    1.65       6.6 +/-    1.65  0.070 / 0.150
G17     204.8          34.4                6.9 +/-    1.46      11.1 +/-    1.46  0.090 / 0.140
G18     81.1           24.0                4.6 +/-    0.83       9.2 +/-    0.83  0.080 / 0.180
G28     301.5          57.2                5.6 +/-    1.24       6.6 +/-    1.24  0.070 / 0.150
G30     8.1            76.8                7.3 +/-    0.66       7.4 +/-    0.66  0.080 / 0.170