PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/01-21:27:40
G10     276.6          44.5               10.3 +/-    0.94      14.0 +/-    0.94  0.050 / 0.050
G13     38.5           11.1                7.2 +/-   10.51      19.5 +/-   10.51  0.050 / 0.050
G15     52.7           43.3                9.1 +/-    0.85      12.6 +/-    0.85  0.200 / 0.350
G20     315.3          63.4                9.1 +/-    0.58      10.1 +/-    0.58  0.130 / 0.360
G21     23.7           75.5               10.7 +/-    0.58      11.0 +/-    0.58  0.040 / 0.060
G24     115.2          18.6               11.6 +/-    1.21      26.5 +/-    1.21  0.050 / 0.070
G27     314.9          24.4                8.0 +/-    1.49      15.8 +/-    1.49  0.170 / 0.160
G29     167.9          23.6               12.8 +/-    1.61      25.9 +/-    1.61  0.190 / 0.170
G32     205.2          16.2               15.4 +/-    2.92      37.3 +/-    2.92  0.090 / 0.060