PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-01:57:30
G02     199.7          23.4                9.5 +/-    3.32      19.3 +/-    3.32  0.080 / 0.080
G06     172.1          54.0                7.9 +/-    0.64       9.5 +/-    0.64  0.060 / 0.090
G13     227.1          12.5                7.7 +/-    2.37      20.5 +/-    2.37  0.050 / 0.040
G17     19.0           61.1                4.9 +/-    0.53       5.5 +/-    0.53  0.030 / 0.030
G19     326.0          70.8                4.3 +/-    0.52       4.5 +/-    0.52  0.030 / 0.040
G24     309.8          29.8                4.7 +/-    0.77       8.4 +/-    0.77  0.040 / 0.040
G28     89.5           38.7                6.0 +/-    0.86       8.9 +/-    0.86  0.170 / 0.220
G30     156.2          11.0                6.8 +/-    3.07      18.5 +/-    3.07  0.180 / 0.410