PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-19:42:40
G10     275.2          43.9                9.2 +/-    1.32      12.6 +/-    1.32  0.130 / 0.150
G13     38.9           12.0                7.1 +/-    1.72      19.0 +/-    1.72  0.110 / 0.130
G15     53.0           43.3                8.9 +/-    0.73      12.3 +/-    0.73  0.040 / 0.040
G20     314.1          63.4               10.0 +/-    0.60      11.0 +/-    0.60  0.040 / 0.040
G21     20.2           75.0               10.5 +/-    0.95      10.8 +/-    0.95  0.110 / 0.390
G24     116.6          17.9               10.5 +/-    1.81      24.2 +/-    1.81  0.120 / 0.380
G27     315.5          23.7                8.3 +/-    1.46      16.7 +/-    1.46  0.150 / 0.370
G29     168.0          25.1               12.4 +/-    1.67      24.1 +/-    1.67  0.220 / 0.520
G32     204.8          15.6               16.8 +/-    3.60      41.1 +/-    3.60  0.040 / 0.060