PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-10:27:50
G08     314.2          15.4                2.6 +/-    2.21       6.5 +/-    2.21  0.090 / 0.190
G10     328.6          59.4                4.2 +/-    0.70       4.8 +/-    0.70  0.090 / 0.220
G14     217.7          26.7                5.5 +/-    1.73      10.4 +/-    1.73  0.060 / 0.070
G15     46.6           10.9                2.5 +/-    1.56       6.8 +/-    1.56  0.050 / 0.080
G20     78.6           21.7                3.0 +/-    1.72       6.4 +/-    1.72  0.110 / 0.290
G21     132.8          57.7                6.8 +/-    0.36       7.9 +/-    0.36  0.120 / 0.270
G24     76.0           30.2                4.6 +/-    0.75       8.0 +/-    0.75  0.030 / 0.030
G27     275.8          37.7                8.0 +/-    0.81      12.1 +/-    0.81  0.030 / 0.030
G32     222.1          52.3                6.5 +/-    0.83       8.0 +/-    0.83  0.030 / 0.050