PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-17:43:00
G01     100.4          28.7               11.1 +/-    1.09      20.0 +/-    1.09  0.130 / 0.200
G07     115.8          53.5               11.4 +/-    0.28      13.8 +/-    0.28  0.140 / 0.290
G08     41.9           16.4                9.4 +/-    1.51      22.5 +/-    1.51  0.020 / 0.050
G11     80.7           42.6               11.2 +/-    0.86      15.6 +/-    0.86  0.030 / 0.090
G13     304.1          32.2               12.3 +/-    1.58      20.6 +/-    1.58  0.030 / 0.030
G17     209.5          42.1               13.2 +/-    1.13      18.6 +/-    1.13  0.040 / 0.030
G18     73.6           24.8               10.9 +/-    0.73      21.4 +/-    0.73  0.040 / 0.060
G19     211.3          17.2               11.4 +/-    2.17      26.9 +/-    2.17  0.050 / 0.060
G28     331.3          61.7                9.8 +/-    0.50      11.0 +/-    0.50  0.050 / 0.070
G30     61.6           79.6               11.0 +/-    0.98      11.2 +/-    0.98  0.040 / 0.080