PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-14:27:40
G02     201.9          21.1                7.3 +/-    1.53      15.6 +/-    1.53  0.080 / 0.340
G06     165.3          59.5                5.7 +/-    0.99       6.5 +/-    0.99  0.070 / 0.300
G12     303.0          12.1                1.5 +/-   11.87       4.1 +/-   11.87  0.110 / 0.100
G13     224.4          10.8                5.3 +/-    2.57      14.6 +/-    2.57  0.100 / 0.090
G17     28.0           55.6                5.6 +/-    0.78       6.6 +/-    0.78  0.200 / 0.320
G19     321.2          70.0                5.0 +/-    0.71       5.3 +/-    0.71  0.130 / 0.280
G24     306.4          33.5                4.7 +/-    1.70       7.7 +/-    1.70  0.040 / 0.040
G28     91.4           37.9                5.2 +/-    0.82       7.8 +/-    0.82  0.040 / 0.050
G30     158.2          13.1                6.4 +/-    2.69      16.6 +/-    2.69  0.170 / 0.440