PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-11:42:30
G08     294.6          21.3                4.2 +/-    0.85       8.9 +/-    0.85  0.060 / 0.100
G10     12.5           63.2                4.0 +/-    0.66       4.4 +/-    0.66  0.050 / 0.100
G14     232.1          46.1                6.4 +/-    1.45       8.5 +/-    1.45  0.050 / 0.080
G18     69.9           47.3                7.1 +/-   13.73       9.3 +/-   13.73  0.050 / 0.080
G21     147.5          36.7                6.0 +/-    0.98       9.2 +/-    0.98  0.120 / 0.090
G24     54.0           24.7                3.7 +/-    2.82       7.3 +/-    2.82  0.110 / 0.100
G27     250.7          30.1                6.3 +/-    1.20      11.0 +/-    1.20  0.190 / 0.230
G32     253.8          71.1                4.4 +/-    0.50       4.7 +/-    0.50  0.200 / 0.380