PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/22-06:43:00
G01     232.4          24.2                6.3 +/-    2.68      12.5 +/-    2.68  0.250 / 0.230
G03     305.5          61.2                4.4 +/-    1.06       5.0 +/-    1.06  0.250 / 0.230
G14     76.7           30.9                4.7 +/-    1.25       8.1 +/-    1.25  0.070 / 0.110
G16     153.3          34.8                6.2 +/-    0.99       9.8 +/-    0.99  0.060 / 0.120
G18     208.3          13.4                6.1 +/-    3.75      15.7 +/-    3.75  0.050 / 0.030
G22     252.4          75.2                6.7 +/-    0.56       6.9 +/-    0.56  0.050 / 0.030
G23     301.9          34.0                4.9 +/-    0.81       7.9 +/-    0.81  0.210 / 0.470
G26     114.9          50.6                7.4 +/-    0.76       9.2 +/-    0.76  0.150 / 0.470
G31     42.8           39.6                4.2 +/-    1.37       6.1 +/-    1.37  0.090 / 0.090
G32     90.9           13.1                3.9 +/-    1.82      10.1 +/-    1.82  0.090 / 0.130