PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-16:58:10
G01     41.0           16.4                6.4 +/-    2.55      15.5 +/-    2.55  0.100 / 0.080
G06     174.8          37.5               10.9 +/-    1.49      16.6 +/-    1.49  0.060 / 0.070
G13     237.3          23.2               12.5 +/-    1.91      25.5 +/-    1.91  0.230 / 0.240
G15     271.3          12.5               10.0 +/-    1.73      26.3 +/-    1.73  0.150 / 0.190
G17     353.6          72.5                9.2 +/-    0.87       9.6 +/-    0.87  0.050 / 0.040
G19     275.6          69.6                9.3 +/-    0.72       9.8 +/-    0.72  0.030 / 0.030
G24     316.7          18.2                8.7 +/-    2.60      19.9 +/-    2.60  0.060 / 0.080
G28     64.0           51.5                8.7 +/-    1.12      10.7 +/-    1.12  0.070 / 0.070
G30     153.7          26.5                9.4 +/-    1.31      17.8 +/-    1.31  0.040 / 0.040