PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/05-14:57:40
G02     213.2          51.5               11.3 +/-    0.75      14.0 +/-    0.75  0.040 / 0.050
G06     68.9           75.8                8.5 +/-    0.79       8.8 +/-    0.79  0.030 / 0.040
G12     318.6          36.9                7.8 +/-    1.30      11.9 +/-    1.30  0.120 / 0.440
G17     54.7           33.5                8.2 +/-    0.81      13.4 +/-    0.81  0.100 / 0.400
G19     27.7           55.4                7.8 +/-    0.32       9.3 +/-    0.32  0.050 / 0.090
G24     269.6          43.0                8.3 +/-    0.99      11.5 +/-    0.99  0.050 / 0.100
G28     118.9          17.7               10.8 +/-    1.31      25.1 +/-    1.31  0.030 / 0.030