PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-11:12:50
G01     41.1           16.5                4.4 +/-    3.19      10.5 +/-    3.19  0.370 / 0.380
G06     173.8          37.5                7.2 +/-    1.83      11.0 +/-    1.83  0.190 / 0.260
G13     237.9          23.9                9.5 +/-    1.87      19.0 +/-    1.87  0.020 / 0.020
G15     273.0          12.7                5.5 +/-    1.15      14.5 +/-    1.15  0.030 / 0.030
G17     351.0          73.3                6.2 +/-    0.69       6.5 +/-    0.69  0.040 / 0.040
G19     274.2          69.9                6.3 +/-    0.48       6.7 +/-    0.48  0.040 / 0.030
G24     317.3          16.3                3.9 +/-    2.60       9.4 +/-    2.60  0.080 / 0.060
G28     60.7           53.0                5.6 +/-    0.99       6.8 +/-    0.99  0.080 / 0.070
G30     154.6          31.1                6.1 +/-    2.21      10.5 +/-    2.21  0.060 / 0.100