PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-04:28:10
G03     222.5          63.4                5.4 +/-    0.85       6.0 +/-    0.85  0.120 / 0.340
G07     253.7          14.2                4.0 +/-    4.00      10.0 +/-    4.00  0.170 / 0.340
G09     307.8          24.7                3.1 +/-    1.69       6.2 +/-    1.69  0.070 / 0.400
G14     104.7          11.3                4.9 +/-    2.16      13.3 +/-    2.16  0.090 / 0.480
G16     106.4          62.4                6.3 +/-    1.04       7.0 +/-    1.04  0.040 / 0.060
G22     193.3          48.1                6.9 +/-    0.53       8.9 +/-    0.53  0.040 / 0.050
G23     327.7          57.3                4.7 +/-    1.00       5.5 +/-    1.00  0.110 / 0.110
G26     58.7           46.4                4.3 +/-    1.08       5.7 +/-    1.08  0.100 / 0.190
G31     57.0           12.3                2.1 +/-    2.39       5.7 +/-    2.39  0.040 / 0.060