PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-19:57:40
G10     283.7          47.7                9.6 +/-    1.90      12.4 +/-    1.90  0.040 / 0.040
G15     49.1           37.4                8.2 +/-    0.71      12.5 +/-    0.71  0.040 / 0.040
G20     329.8          64.9               10.2 +/-    0.67      11.2 +/-    0.67  0.030 / 0.060
G21     47.5           77.2               10.7 +/-    0.92      10.9 +/-    0.92  0.050 / 0.070
G24     110.4          21.6                9.4 +/-    0.80      19.8 +/-    0.80  0.070 / 0.100
G27     310.9          28.3                8.6 +/-    1.47      15.6 +/-    1.47  0.070 / 0.120
G29     168.2          18.4               13.0 +/-    1.74      29.7 +/-    1.74  0.100 / 0.220
G32     206.3          22.0               12.7 +/-    1.58      26.6 +/-    1.58  0.110 / 0.180