PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-17:12:50
G01     117.4          19.2               19.3 +/-    1.49      43.2 +/-    1.49  0.060 / 0.060
G07     85.0           65.8               18.7 +/-    0.46      20.3 +/-    0.46  0.070 / 0.090
G08     44.7           31.4               15.2 +/-    0.95      25.9 +/-    0.95  0.030 / 0.030
G09     176.6          23.8               18.7 +/-    1.29      37.6 +/-    1.29  0.030 / 0.030
G11     105.0          40.7               17.8 +/-    0.64      25.6 +/-    0.64  0.030 / 0.020
G13     316.7          20.9               17.0 +/-    1.83      36.6 +/-    1.83  0.040 / 0.030
G17     203.0          24.4               18.9 +/-    1.12      37.6 +/-    1.12  0.130 / 0.170
G18     92.4           21.6               19.3 +/-    2.17      40.9 +/-    2.17  0.150 / 0.170
G28     296.8          58.2               17.7 +/-    0.93      20.4 +/-    0.93  0.100 / 0.190
G30     351.7          70.7               18.4 +/-    0.66      19.4 +/-    0.66  0.110 / 0.220