PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/08-21:58:00
G08     319.8          11.5                4.6 +/-   19.51      12.5 +/-   19.51  0.040 / 0.040
G10     315.7          57.3                8.0 +/-    1.32       9.3 +/-    1.32  0.040 / 0.030
G14     213.2          18.8               12.5 +/-   12.49      28.2 +/-   12.49  0.510 / 0.520
G15     45.7           20.1                7.4 +/-    2.32      16.3 +/-    2.32  0.410 / 0.710
G20     18.0           63.4                9.5 +/-    0.92      10.5 +/-    0.92  0.290 / 0.290
G21     119.8          67.5               10.7 +/-    0.59      11.5 +/-    0.59  0.150 / 0.180
G24     87.8           29.7               10.5 +/-    1.16      18.4 +/-    1.16  0.080 / 0.070
G27     289.1          37.5                7.2 +/-    1.04      10.9 +/-    1.04  0.060 / 0.060
G32     215.0          42.1               12.3 +/-    1.19      17.3 +/-    1.19  0.280 / 0.460