PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-15:43:10
G01     42.2           18.1                7.6 +/-    3.30      17.4 +/-    3.30  0.040 / 0.050
G06     175.0          35.3               10.5 +/-    1.60      16.6 +/-    1.60  0.040 / 0.070
G13     239.4          24.8                9.7 +/-    2.31      19.0 +/-    2.31  0.140 / 0.330
G15     273.8          13.3                8.7 +/-    1.60      22.6 +/-    1.60  0.220 / 0.270
G17     343.7          74.5               10.3 +/-    0.35      10.7 +/-    0.35  0.020 / 0.030
G19     268.9          68.5               10.1 +/-    1.15      10.8 +/-    1.15  0.030 / 0.020
G24     317.5          15.9                7.1 +/-    1.53      17.2 +/-    1.53  0.040 / 0.050
G28     60.0           52.7               10.1 +/-    1.24      12.3 +/-    1.24  0.040 / 0.050
G30     153.2          29.7                9.9 +/-    1.64      17.5 +/-    1.64  0.060 / 0.110