PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-18:58:10
G10     288.3          48.7                8.6 +/-    1.68      11.0 +/-    1.68  0.070 / 0.120
G15     48.5           37.1                6.6 +/-    0.53      10.0 +/-    0.53  0.090 / 0.130
G20     336.4          65.2                6.8 +/-    1.34       7.5 +/-    1.34  0.040 / 0.050
G21     74.4           76.1                9.4 +/-    1.11       9.6 +/-    1.11  0.040 / 0.050
G24     100.8          23.6                9.5 +/-    1.83      19.1 +/-    1.83  0.080 / 0.180
G27     308.3          29.7                8.3 +/-    1.93      14.7 +/-    1.93  0.080 / 0.180
G29     168.2          13.5               10.9 +/-    4.02      28.1 +/-    4.02  0.070 / 0.090
G32     208.0          25.8               10.4 +/-    1.48      19.9 +/-    1.48  0.050 / 0.080