PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-17:57:50
G01     103.6          26.6                8.6 +/-   27.23      16.2 +/-   27.23  0.040 / 0.060
G07     114.0          49.8                6.6 +/-   28.80       8.3 +/-   28.80  0.040 / 0.060
G08     41.6           17.9                4.8 +/-   25.75      11.0 +/-   25.75  0.030 / 0.060
G09     175.0          12.5               12.7 +/-   26.71      33.6 +/-   26.71  0.030 / 0.070
G11     83.5           43.0                6.4 +/-   28.48       8.9 +/-   28.48  0.040 / 0.080
G13     306.8          31.2                7.7 +/-   27.92      13.2 +/-   27.92  0.050 / 0.080
G17     206.3          40.5                9.6 +/-   30.62      13.9 +/-   30.62  0.070 / 0.130
G18     75.3           24.1                4.6 +/-   26.86       9.2 +/-   26.86  0.070 / 0.160
G28     313.7          59.7                6.1 +/-   28.18       7.0 +/-   28.18  0.110 / 0.260
G30     51.6           79.0                5.5 +/-   28.00       5.6 +/-   28.00  0.150 / 0.330