PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-20:13:10
G10     276.5          44.5               10.8 +/-    0.94      14.7 +/-    0.94  0.050 / 0.040
G13     38.5           11.1                7.1 +/-   12.33      19.4 +/-   12.33  0.070 / 0.050
G15     52.5           42.8                8.9 +/-    0.83      12.5 +/-    0.83  0.530 / 0.490
G20     316.1          63.6                9.2 +/-    0.65      10.2 +/-    0.65  0.340 / 0.450
G21     23.6           75.5               10.4 +/-    0.58      10.7 +/-    0.58  0.030 / 0.050
G24     115.5          18.5               11.5 +/-    1.65      26.3 +/-    1.65  0.050 / 0.060
G27     314.9          24.4                8.0 +/-    1.71      15.8 +/-    1.71  0.240 / 0.140
G29     168.0          24.0               12.4 +/-    2.84      24.8 +/-    2.84  0.110 / 0.140
G32     205.1          16.4               14.2 +/-    2.55      34.0 +/-    2.55  0.070 / 0.160