PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-18:43:00
G01     93.3           30.5               12.1 +/-    0.97      21.0 +/-    0.97  0.030 / 0.030
G07     123.7          41.7               11.4 +/-    0.55      16.2 +/-    0.55  0.030 / 0.030
G08     41.9           9.9                 9.2 +/-    3.64      25.6 +/-    3.64  0.040 / 0.060
G11     70.9           40.9               10.7 +/-    1.15      15.3 +/-    1.15  0.040 / 0.060
G13     297.5          35.8               11.2 +/-    1.97      17.4 +/-    1.97  0.040 / 0.050
G17     211.3          50.5               12.1 +/-    0.41      15.1 +/-    0.41  0.040 / 0.040
G18     65.1           23.6                9.8 +/-    1.04      19.7 +/-    1.04  0.110 / 0.130
G19     212.5          24.6               12.1 +/-    2.17      23.9 +/-    2.17  0.100 / 0.150
G28     332.4          61.3                9.8 +/-    0.65      11.0 +/-    0.65  0.070 / 0.150
G30     97.8           76.2               11.4 +/-    0.24      11.7 +/-    0.24  0.100 / 0.180