PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-09:12:40
G01     86.3           32.5                5.5 +/-    1.43       9.2 +/-    1.43  0.020 / 0.030
G07     128.5          41.6                7.6 +/-    0.62      10.7 +/-    0.62  0.020 / 0.030
G11     63.5           37.5                4.7 +/-    0.47       7.1 +/-    0.47  0.040 / 0.070
G13     290.3          37.2                5.4 +/-    1.91       8.3 +/-    1.91  0.050 / 0.060
G17     216.6          59.1                8.2 +/-    0.83       9.4 +/-    0.83  0.090 / 0.110
G18     58.8           22.2                2.6 +/-    1.29       5.3 +/-    1.29  0.090 / 0.090
G19     216.3          26.3                4.6 +/-    1.06       8.8 +/-    1.06  0.070 / 0.110
G28     353.0          61.6                3.5 +/-    1.10       4.0 +/-    1.10  0.070 / 0.130
G30     112.1          75.4                7.5 +/-    1.09       7.7 +/-    1.09  0.070 / 0.200