PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-14:27:30
G02     201.1          18.8                7.9 +/-    2.75      18.0 +/-    2.75  0.050 / 0.080
G06     169.0          54.8                9.1 +/-    1.05      10.8 +/-    1.05  0.050 / 0.080
G13     225.6          13.1                7.4 +/-    1.76      19.2 +/-    1.76  0.100 / 0.100
G17     15.7           62.7                7.3 +/-    0.89       8.1 +/-    0.89  0.110 / 0.130
G19     329.3          71.3                7.0 +/-    1.10       7.4 +/-    1.10  0.040 / 0.030
G24     309.9          29.1                7.2 +/-    1.19      12.8 +/-    1.19  0.040 / 0.030
G28     83.5           44.7                8.2 +/-    0.88      11.1 +/-    0.88  0.040 / 0.030
G30     157.2          14.1                8.7 +/-    1.75      22.1 +/-    1.75  0.050 / 0.030