PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-14:57:30
G02     23.3           62.2                5.7 +/-    0.54       6.4 +/-    0.54  0.030 / 0.050
G05     153.6          53.9                6.3 +/-    0.96       7.5 +/-    0.96  0.040 / 0.060
G06     49.7           20.5                3.4 +/-    0.78       7.3 +/-    0.78  0.090 / 0.210
G12     209.7          75.5                5.3 +/-    0.65       5.5 +/-    0.65  0.120 / 0.210
G19     94.2           12.3                6.9 +/-    2.12      18.4 +/-    2.12  0.030 / 0.020
G25     306.6          47.1                4.5 +/-    1.47       5.8 +/-    1.47  0.020 / 0.040
G29     301.3          21.9                7.9 +/-    1.86      16.5 +/-    1.86  0.040 / 0.080