PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/05-15:12:30
G02     218.3          58.4                9.0 +/-    1.12      10.4 +/-    1.12  0.050 / 0.060
G06     51.9           70.1                9.5 +/-    0.32      10.0 +/-    0.32  0.050 / 0.050
G12     320.9          43.2                8.4 +/-    0.85      11.6 +/-    0.85  0.060 / 0.080
G17     60.2           29.1                7.3 +/-    2.83      13.0 +/-    2.83  0.090 / 0.070
G19     36.9           51.0                9.1 +/-    2.26      11.3 +/-    2.26  0.030 / 0.030
G24     260.2          41.5                8.9 +/-    3.00      12.6 +/-    3.00  0.040 / 0.030
G28     123.6          12.6                9.1 +/-    1.65      24.1 +/-    1.65  0.050 / 0.040