PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/13-12:12:30
G08     297.3          21.2                5.4 +/-    2.20      11.6 +/-    2.20  0.070 / 0.080
G10     5.5            63.0                5.5 +/-    1.20       6.1 +/-    1.20  0.120 / 0.090
G14     229.4          43.6                8.0 +/-    1.96      11.0 +/-    1.96  0.110 / 0.090
G21     145.9          39.5                7.6 +/-    1.73      11.1 +/-    1.73  0.120 / 0.090
G24     56.9           26.1                5.4 +/-    2.22      10.3 +/-    2.22  0.050 / 0.070
G27     253.9          31.7                5.2 +/-    3.07       8.7 +/-    3.07  0.060 / 0.070
G32     246.4          68.5                6.1 +/-    0.62       6.5 +/-    0.62  0.030 / 0.020