PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-12:12:30
G02     206.9          42.3                5.3 +/-    0.66       7.5 +/-    0.66  0.060 / 0.090
G06     130.8          77.1                5.6 +/-    0.79       5.7 +/-    0.79  0.070 / 0.090
G12     311.8          23.2                3.3 +/-    1.37       6.6 +/-    1.37  0.050 / 0.040
G17     42.2           44.2                3.4 +/-    1.32       4.6 +/-    1.32  0.030 / 0.040
G19     20.7           58.5                3.9 +/-    0.79       4.4 +/-    0.79  0.030 / 0.040
G24     288.4          40.3                8.2 +/-    2.15      11.8 +/-    2.15  0.040 / 0.040
G28     107.2          31.7                4.0 +/-    1.46       6.8 +/-    1.46  0.030 / 0.020