PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-13:27:50
G07     335.9          59.4                6.4 +/-    0.93       7.3 +/-    0.93  0.160 / 0.260
G08     106.9          50.7                7.9 +/-    0.37       9.9 +/-    0.37  0.260 / 0.350
G09     203.8          78.2                7.4 +/-    0.39       7.6 +/-    0.39  0.190 / 0.340
G11     147.4          11.9                8.8 +/-    4.04      23.5 +/-    4.04  0.180 / 0.310
G16     45.7           10.7                5.7 +/-    3.09      15.8 +/-    3.09  0.040 / 0.040
G23     153.4          43.1                8.0 +/-    1.19      11.1 +/-    1.19  0.040 / 0.050
G27     59.7           34.0                6.7 +/-    1.59      10.8 +/-    1.59  0.060 / 0.070
G28     233.2          21.6                8.0 +/-    1.69      16.8 +/-    1.69  0.050 / 0.060
G30     300.9          35.7                6.8 +/-    1.17      10.6 +/-    1.17  0.050 / 0.080