PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/23-00:58:10
G08     274.0          18.8               10.1 +/-    0.64      23.0 +/-    0.64  0.180 / 0.300
G10     59.0           57.9               10.3 +/-    0.91      11.9 +/-    0.91  0.170 / 0.220
G14     259.0          63.5               11.5 +/-    0.67      12.7 +/-    0.67  0.050 / 0.050
G18     313.7          30.5                8.9 +/-    1.20      15.4 +/-    1.20  0.040 / 0.060
G20     93.5           37.8               10.2 +/-    1.18      15.4 +/-    1.18  0.100 / 0.150
G21     155.0          18.6               12.0 +/-    2.96      27.3 +/-    2.96  0.100 / 0.120
G24     41.2           12.2                6.4 +/-    3.22      17.1 +/-    3.22  0.120 / 0.220
G27     233.8          17.9               12.3 +/-    3.86      28.5 +/-    3.86  0.120 / 0.190
G31     177.5          29.1               11.5 +/-    1.19      20.6 +/-    1.19  0.030 / 0.020
G32     329.1          75.4               10.4 +/-    0.41      10.7 +/-    0.41  0.030 / 0.030