PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-18:28:10
G07     313.4          51.2               10.3 +/-    0.85      12.9 +/-    0.85  0.040 / 0.050
G08     124.5          41.7               13.2 +/-    0.59      18.7 +/-    0.59  0.040 / 0.050
G09     301.4          78.9               11.0 +/-    0.83      11.2 +/-    0.83  0.030 / 0.020
G16     42.1           28.0                7.4 +/-    2.34      13.5 +/-    2.34  0.040 / 0.020
G23     145.5          63.6               12.1 +/-    0.37      13.3 +/-    0.37  0.050 / 0.070
G27     80.4           37.9               10.3 +/-    0.66      15.4 +/-    0.66  0.050 / 0.060
G30     287.0          23.4               10.3 +/-    1.53      20.9 +/-    1.53  0.090 / 0.140