PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-00:58:10
G01     319.4          17.3                7.5 +/-    1.91      17.6 +/-    1.91  0.070 / 0.220
G08     256.8          13.6               10.2 +/-    1.67      26.2 +/-    1.67  0.070 / 0.230
G10     78.8           53.3                9.0 +/-    0.58      10.9 +/-    0.58  0.030 / 0.050
G11     303.1          23.3                6.8 +/-    2.46      13.8 +/-    2.46  0.030 / 0.050
G14     292.2          70.0                8.2 +/-    0.56       8.6 +/-    0.56  0.130 / 0.170
G18     304.8          40.6                8.2 +/-    1.80      11.8 +/-    1.80  0.110 / 0.180
G20     104.7          29.7                9.1 +/-    0.71      16.1 +/-    0.71  0.040 / 0.070
G31     175.5          41.8               10.7 +/-    0.82      15.2 +/-    0.82  0.040 / 0.050
G32     8.9            67.3                6.7 +/-    0.86       7.2 +/-    0.86  0.170 / 0.240