PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/14-13:28:00
G01     44.6           20.7                5.5 +/-    2.57      11.8 +/-    2.57  0.040 / 0.050
G06     175.4          31.4                8.3 +/-    1.61      14.1 +/-    1.61  0.040 / 0.050
G11     43.6           10.9                5.3 +/-    3.09      14.5 +/-    3.09  0.030 / 0.040
G13     243.0          27.5                6.7 +/-    1.31      12.4 +/-    1.31  0.040 / 0.040
G15     278.3          14.2                4.1 +/-    1.64      10.3 +/-    1.64  0.190 / 0.260
G17     323.7          76.8                6.9 +/-    0.42       7.0 +/-    0.42  0.340 / 0.290
G19     258.9          66.3                6.9 +/-    0.70       7.4 +/-    0.70  0.040 / 0.020
G24     318.4          12.1                0.6 +/-   15.77       1.7 +/-   15.77  0.030 / 0.020
G28     52.9           54.7                5.9 +/-    0.98       7.1 +/-    0.98  0.090 / 0.160
G30     152.3          35.4                7.1 +/-    0.91      11.2 +/-    0.91  0.060 / 0.170