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                7.6 +/-    1.02      15.1 +/-    1.02  0.040 / 0.040
G07     105.6          57.7                8.3 +/-    0.88       9.7 +/-    0.88  0.030 / 0.040
G08     42.3           23.5                3.8 +/-    1.08       7.8 +/-    1.08  0.070 / 0.100
G09     174.3          14.3                3.2 +/-    1.61       8.2 +/-    1.61  0.080 / 0.110
G11     92.7           44.3                8.5 +/-    0.59      11.6 +/-    0.59  0.150 / 0.260
G13     310.0          29.1                3.5 +/-    0.92       6.2 +/-    0.92  0.160 / 0.290
G17     204.8          34.4                6.3 +/-    1.45      10.1 +/-    1.45  0.100 / 0.150
G18     81.1           24.0                5.0 +/-    1.89      10.0 +/-    1.89  0.100 / 0.160
G28     301.5          57.2                5.2 +/-    1.37       6.1 +/-    1.37  0.030 / 0.030
G30     8.1            76.8                6.6 +/-    0.86       6.8 +/-    0.86  0.040 / 0.030