PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-22:57:40
G08     305.8          20.9                7.5 +/-    2.09      16.2 +/-    2.09  0.040 / 0.040
G10     338.6          60.9                7.5 +/-    0.59       8.5 +/-    0.59  0.040 / 0.050
G14     219.8          32.9                9.8 +/-    1.41      16.2 +/-    1.41  0.120 / 0.150
G15     47.4           12.8                5.6 +/-    1.94      14.6 +/-    1.94  0.130 / 0.120
G20     43.3           59.1                9.9 +/-    0.63      11.4 +/-    0.63  0.060 / 0.090
G21     137.3          54.1               10.0 +/-    0.33      12.0 +/-    0.33  0.060 / 0.060
G24     67.9           28.4                7.3 +/-    1.59      13.3 +/-    1.59  0.070 / 0.090
G27     272.1          36.6                9.2 +/-    2.19      14.1 +/-    2.19  0.080 / 0.070
G32     226.1          56.5                9.4 +/-    2.40      11.1 +/-    2.40  0.110 / 0.280