PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/28-02:58:00
G08     290.7          23.2                7.2 +/-    3.17      14.6 +/-    3.17  0.090 / 0.160
G10     12.4           63.1                7.7 +/-    0.98       8.5 +/-    0.98  0.110 / 0.140
G14     231.5          46.3               11.1 +/-    1.58      14.8 +/-    1.58  0.080 / 0.090
G18     317.7          11.5               -0.7 +/-   17.41      -2.0 +/-   17.41  0.080 / 0.090
G20     32.8           65.1                9.0 +/-    1.04       9.8 +/-    1.04  0.030 / 0.070
G21     147.8          39.3                9.6 +/-    2.54      14.2 +/-    2.54  0.030 / 0.040
G24     53.2           23.7                7.0 +/-    0.99      14.1 +/-    0.99  0.100 / 0.120
G27     252.3          30.6               12.9 +/-    0.87      22.3 +/-    0.87  0.110 / 0.160
G32     253.0          71.4                8.0 +/-    0.69       8.4 +/-    0.69  0.040 / 0.100