PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-23:28:00
G01     319.6          17.7               -7.5 +/-   35.16     -17.5 +/-   35.16  0.200 / 0.270
G08     262.3          14.7                9.8 +/-    1.11      24.7 +/-    1.11  0.110 / 0.150
G10     77.2           52.8                7.8 +/-    0.98       9.5 +/-    0.98  0.040 / 0.050
G11     306.6          20.4                6.4 +/-    1.10      13.9 +/-    1.10  0.040 / 0.050
G14     282.4          68.5                8.4 +/-    0.22       9.0 +/-    0.22  0.060 / 0.080
G18     306.8          39.2                7.3 +/-    1.56      10.8 +/-    1.56  0.080 / 0.090
G20     103.9          29.7                9.9 +/-    1.88      17.4 +/-    1.88  0.030 / 0.020
G27     225.8          10.8               12.5 +/-    3.68      34.4 +/-    3.68  0.020 / 0.030
G31     175.2          40.2                9.5 +/-    0.85      13.7 +/-    0.85  0.240 / 0.320
G32     3.6            69.1                7.7 +/-    0.73       8.1 +/-    0.73  0.290 / 0.370