PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-02:12:40
G08     307.8          20.1                6.6 +/-    1.23      14.4 +/-    1.23  0.040 / 0.050
G10     330.7          59.7                6.4 +/-    0.85       7.3 +/-    0.85  0.050 / 0.060
G14     218.4          32.9                8.4 +/-    1.15      13.8 +/-    1.15  0.050 / 0.090
G15     46.8           12.3                6.1 +/-    1.94      16.1 +/-    1.94  0.060 / 0.090
G18     37.1           60.0                6.9 +/-    0.34       7.8 +/-    0.34  0.030 / 0.040
G21     134.2          56.5                8.2 +/-    0.76       9.6 +/-    0.76  0.040 / 0.030
G24     75.2           30.6                7.4 +/-    0.72      12.8 +/-    0.72  0.070 / 0.150
G27     272.4          37.5                8.2 +/-    1.38      12.5 +/-    1.38  0.080 / 0.160
G32     223.9          51.2               10.7 +/-    1.92      13.3 +/-    1.92  0.060 / 0.090