PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/30-11:43:10
G03     194.2          28.6                1.8 +/-   10.82       3.3 +/-   10.82  0.060 / 0.120
G07     282.6          32.9                2.6 +/-    6.03       4.2 +/-    6.03  0.040 / 0.150
G08     147.1          21.5                3.5 +/-   11.76       7.5 +/-   11.76  0.070 / 0.270
G09     321.1          56.4                0.6 +/-    9.30       0.7 +/-    9.30  0.080 / 0.330
G16     45.3           43.8                1.3 +/-    5.06       1.7 +/-    5.06  0.060 / 0.110
G22     178.6          12.0                0.5 +/-    3.31       1.5 +/-    3.31  0.060 / 0.120
G23     75.1           82.2                1.8 +/-    2.93       1.8 +/-    2.93  0.030 / 0.030
G26     42.9           16.0                2.5 +/-   12.38       6.2 +/-   12.38  0.020 / 0.060
G27     108.4          30.0                3.1 +/-   10.25       5.4 +/-   10.25  0.030 / 0.070