PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/15-02:57:40
G08     291.6          22.1                9.5 +/-    0.67      19.8 +/-    0.67  0.130 / 0.160
G10     21.0           62.5               11.1 +/-    0.55      12.4 +/-    0.55  0.130 / 0.130
G14     233.5          50.0               12.2 +/-    2.25      15.4 +/-    2.25  0.040 / 0.040
G18     317.9          14.5                6.0 +/-    3.14      15.1 +/-    3.14  0.040 / 0.030
G20     71.4           49.9               10.5 +/-    0.96      13.3 +/-    0.96  0.050 / 0.080
G21     149.1          36.5               11.2 +/-    0.98      17.3 +/-    0.98  0.070 / 0.080
G24     52.5           23.6                8.4 +/-    2.24      16.9 +/-    2.24  0.100 / 0.060
G27     250.3          29.6               11.0 +/-    1.78      19.4 +/-    1.78  0.080 / 0.090
G31     182.1          11.3               -0.9 +/-   18.23      -2.3 +/-   18.23  0.190 / 0.340
G32     254.0          70.0               10.1 +/-    0.60      10.7 +/-    0.60  0.160 / 0.390