PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-02:57:40
G08     288.7          23.2                9.6 +/-    1.26      19.5 +/-    1.26  0.090 / 0.140
G10     16.5           63.0                8.3 +/-    0.70       9.2 +/-    0.70  0.100 / 0.140
G14     233.3          48.0               13.3 +/-    0.80      17.2 +/-    0.80  0.060 / 0.090
G18     317.7          13.1                6.3 +/-    1.78      16.3 +/-    1.78  0.060 / 0.080
G20     35.8           65.0               10.7 +/-    0.21      11.7 +/-    0.21  0.090 / 0.150
G21     148.7          37.4               10.2 +/-    0.99      15.5 +/-    0.99  0.080 / 0.140
G24     51.6           22.7                6.7 +/-    0.93      13.7 +/-    0.93  0.030 / 0.030
G27     250.4          29.5               11.9 +/-    1.52      21.1 +/-    1.52  0.040 / 0.030
G31     181.7          11.4                3.3 +/-   23.48       9.0 +/-   23.48  0.050 / 0.120
G32     258.2          72.7               10.1 +/-    0.72      10.6 +/-    0.72  0.040 / 0.090