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                5.1 +/-    2.00      11.2 +/-    2.00  0.060 / 0.070
G10     330.7          59.7                5.7 +/-    0.86       6.5 +/-    0.86  0.100 / 0.060
G14     218.4          32.9               10.2 +/-    1.61      16.8 +/-    1.61  0.060 / 0.080
G15     46.8           12.3                5.0 +/-    1.93      13.2 +/-    1.93  0.060 / 0.090
G18     37.1           60.0                7.0 +/-    1.51       7.9 +/-    1.51  0.040 / 0.030
G21     134.2          56.5                9.6 +/-    0.50      11.2 +/-    0.50  0.030 / 0.030
G24     75.2           30.6                6.5 +/-    1.16      11.3 +/-    1.16  0.040 / 0.040
G27     272.4          37.5                7.9 +/-    2.70      12.0 +/-    2.70  0.040 / 0.040
G32     223.9          51.2                9.9 +/-    2.20      12.3 +/-    2.20  0.070 / 0.060