PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-13:43:10
G01     38.7           12.8                4.4 +/-    0.80      11.5 +/-    0.80  0.060 / 0.140
G06     172.7          43.1                7.8 +/-    1.57      10.7 +/-    1.57  0.120 / 0.130
G13     233.6          20.3                6.5 +/-    1.04      14.3 +/-    1.04  0.040 / 0.080
G15     268.4          10.9                3.5 +/-    3.42       9.6 +/-    3.42  0.040 / 0.070
G17     358.8          70.3                6.8 +/-    0.69       7.1 +/-    0.69  0.100 / 0.250
G19     291.2          71.7                5.4 +/-    0.61       5.7 +/-    0.61  0.110 / 0.250
G24     315.4          21.0                3.2 +/-    3.36       6.9 +/-    3.36  0.090 / 0.210
G28     69.3           50.2                5.4 +/-    0.60       6.8 +/-    0.60  0.110 / 0.220
G30     155.5          24.5                6.6 +/-    1.51      13.1 +/-    1.51  0.050 / 0.070