PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/24-09:28:00
G07     28.5           68.7                5.0 +/-    0.64       5.3 +/-    0.64  0.030 / 0.030
G08     65.0           50.2                4.7 +/-    1.70       5.9 +/-    1.70  0.020 / 0.030
G09     179.1          47.9                7.2 +/-    0.98       9.3 +/-    0.98  0.100 / 0.170
G11     129.6          29.5                7.0 +/-    0.84      12.4 +/-    0.84  0.080 / 0.360
G18     112.3          11.2                4.9 +/-    1.73      13.2 +/-    1.73  0.040 / 0.050
G23     159.3          15.7                5.3 +/-    1.25      13.0 +/-    1.25  0.050 / 0.060
G27     40.0           16.2                2.9 +/-    1.84       6.9 +/-    1.84  0.070 / 0.050
G28     256.2          40.6                7.0 +/-    2.44      10.0 +/-    2.44  0.040 / 0.040
G30     321.1          51.7                4.3 +/-    0.77       5.4 +/-    0.77  0.170 / 0.420