PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-02:58:00
G01     233.2          25.4                5.0 +/-    2.22       9.7 +/-    2.22  0.140 / 0.200
G03     308.4          58.1                4.0 +/-    1.60       4.6 +/-    1.60  0.140 / 0.200
G14     74.1           33.3                1.8 +/-    1.60       3.0 +/-    1.60  0.070 / 0.130
G16     153.1          33.6                4.7 +/-    1.28       7.6 +/-    1.28  0.070 / 0.110
G18     209.6          14.7                5.6 +/-    3.09      14.1 +/-    3.09  0.220 / 0.340
G22     264.8          74.5                4.4 +/-    1.26       4.6 +/-    1.26  0.340 / 0.410
G23     299.5          31.1                4.3 +/-    1.19       7.3 +/-    1.19  0.090 / 0.270
G26     116.8          49.6                4.5 +/-    1.00       5.7 +/-    1.00  0.120 / 0.270
G31     42.4           41.2                1.9 +/-    1.36       2.6 +/-    1.36  0.040 / 0.030
G32     90.0           12.9                3.1 +/-    2.04       8.2 +/-    2.04  0.050 / 0.030