PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/24-02:42:50
G10     295.2          50.6                8.3 +/-    1.47      10.5 +/-    1.47  0.040 / 0.050
G14     209.8          12.8               10.8 +/-    4.80      28.3 +/-    4.80  0.040 / 0.050
G15     46.7           31.7                6.3 +/-    0.80      10.6 +/-    0.80  0.070 / 0.090
G18     351.8          66.3                7.3 +/-    0.61       7.8 +/-    0.61  0.070 / 0.090
G20     71.4           17.1                5.1 +/-    1.42      11.9 +/-    1.42  0.080 / 0.320
G21     92.8           74.7                9.2 +/-    1.10       9.5 +/-    1.10  0.100 / 0.490
G24     99.9           26.1                9.2 +/-    0.89      17.5 +/-    0.89  0.070 / 0.130
G27     299.6          34.8                8.4 +/-    0.69      13.4 +/-    0.69  0.070 / 0.120
G32     210.6          30.7               10.6 +/-    3.16      18.3 +/-    3.16  0.110 / 0.200