PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-09:42:50
G01     318.0          20.2                4.3 +/-    1.85       9.5 +/-    1.85  0.060 / 0.060
G08     257.9          11.7                5.5 +/-   12.88      14.8 +/-   12.88  0.040 / 0.040
G10     84.1           51.7                5.3 +/-    1.23       6.6 +/-    1.23  0.260 / 0.260
G11     301.5          23.5                5.2 +/-    1.12      10.6 +/-    1.12  0.190 / 0.220
G14     294.1          68.7                4.8 +/-    0.74       5.1 +/-    0.74  0.200 / 0.290
G18     302.4          41.6                6.0 +/-    1.37       8.5 +/-    1.37  0.330 / 0.290
G22     303.3          16.7                3.7 +/-    3.83       8.7 +/-    3.83  0.210 / 0.580
G25     99.4           9.7               -11.8 +/-   24.19     -33.1 +/-   24.19  0.180 / 0.410
G31     173.1          47.2                6.7 +/-    0.98       8.7 +/-    0.98  0.070 / 0.140
G32     16.3           64.1                5.4 +/-    0.40       5.9 +/-    0.40  0.060 / 0.140