PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/25-09:27:40
G07     33.7           68.9                5.3 +/-    0.41       5.7 +/-    0.41  0.020 / 0.050
G08     62.4           49.1                4.8 +/-    1.13       6.1 +/-    1.13  0.020 / 0.030
G09     178.8          45.9                7.6 +/-    1.43      10.1 +/-    1.43  0.090 / 0.260
G11     128.0          30.7                5.3 +/-    0.91       9.1 +/-    0.91  0.100 / 0.200
G18     110.7          12.2                3.4 +/-    3.25       8.9 +/-    3.25  0.050 / 0.120
G23     159.5          13.9                5.1 +/-    2.33      12.9 +/-    2.33  0.060 / 0.120
G27     39.3           14.8                3.1 +/-    2.64       7.7 +/-    2.64  0.100 / 0.390
G28     258.2          41.8                6.1 +/-    1.57       8.5 +/-    1.57  0.100 / 0.370
G30     322.8          53.1                6.5 +/-    0.66       7.9 +/-    0.66  0.150 / 0.360