PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-14:12:40
G01     39.5           14.1                6.4 +/-    2.22      16.3 +/-    2.22  0.040 / 0.070
G06     173.3          41.1               10.6 +/-    0.84      15.1 +/-    0.84  0.040 / 0.080
G13     235.0          21.4                8.7 +/-    1.43      18.4 +/-    1.43  0.200 / 0.170
G15     269.7          11.5                7.3 +/-    2.19      19.7 +/-    2.19  0.120 / 0.290
G17     353.6          71.7                7.4 +/-    0.51       7.8 +/-    0.51  0.020 / 0.030
G19     285.1          71.1                7.7 +/-    0.38       8.0 +/-    0.38  0.020 / 0.040
G24     316.0          19.8                5.1 +/-    2.20      11.2 +/-    2.20  0.040 / 0.030
G28     67.0           50.8                7.9 +/-    1.18       9.8 +/-    1.18  0.040 / 0.030
G30     155.0          25.8                8.0 +/-    1.12      15.4 +/-    1.12  0.080 / 0.220