PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-16:12:30
G02     205.3          36.0               13.1 +/-    1.42      20.4 +/-    1.42  0.060 / 0.120
G06     145.0          73.8               12.5 +/-    0.88      13.0 +/-    0.88  0.070 / 0.090
G12     310.8          22.1                8.8 +/-    1.75      18.5 +/-    1.75  0.070 / 0.130
G17     40.3           45.6                9.4 +/-    0.94      12.6 +/-    0.94  0.070 / 0.140
G19     1.0            64.7                9.8 +/-    0.59      10.7 +/-    0.59  0.030 / 0.020
G24     292.1          40.8                5.6 +/-    8.90       8.0 +/-    8.90  0.040 / 0.020
G28     105.8          28.9               11.2 +/-    0.83      20.0 +/-    0.83  0.040 / 0.030