PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/08-17:58:10
G07     340.9          60.8               10.4 +/-    0.55      11.7 +/-    0.55  0.030 / 0.050
G08     99.3           51.1               11.7 +/-    0.81      14.6 +/-    0.81  0.030 / 0.050
G09     197.0          75.9               10.3 +/-    0.29      10.6 +/-    0.29  0.120 / 0.280
G11     145.3          13.4               14.1 +/-    2.17      36.3 +/-    2.17  0.190 / 0.370
G16     46.1           11.6                8.4 +/-    2.14      22.6 +/-    2.14  0.030 / 0.030
G23     155.3          43.5               12.8 +/-    0.91      17.7 +/-    0.91  0.030 / 0.030
G27     58.0           33.6                9.3 +/-    1.54      15.2 +/-    1.54  0.060 / 0.090
G28     235.1          24.6               14.6 +/-    2.25      28.7 +/-    2.25  0.050 / 0.100
G30     301.6          35.4               10.4 +/-    1.46      16.4 +/-    1.46  0.090 / 0.100