PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-23:42:20
G02     230.3          72.0                9.2 +/-    0.21       9.6 +/-    0.21  0.070 / 0.080
G05     173.0          12.2               16.1 +/-    4.11      42.7 +/-    4.11  0.080 / 0.090
G06     42.7           66.8                7.6 +/-    0.43       8.2 +/-    0.43  0.040 / 0.050
G12     320.2          43.8                7.7 +/-    0.59      10.5 +/-    0.59  0.030 / 0.050
G17     66.5           24.8               10.3 +/-    1.98      20.2 +/-    1.98  0.040 / 0.060
G19     51.5           41.6                8.5 +/-    1.12      12.1 +/-    1.12  0.050 / 0.070
G24     249.7          37.4               10.7 +/-    1.17      16.2 +/-    1.17  0.150 / 0.370