PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-19:12:30
G02     35.3           53.6                7.4 +/-    0.92       9.0 +/-    0.92  0.030 / 0.030
G05     130.0          65.9                8.9 +/-    0.44       9.7 +/-    0.44  0.030 / 0.030
G06     57.2           10.3                7.0 +/-    1.05      19.5 +/-    1.05  0.040 / 0.050
G12     187.1          58.8                8.1 +/-    0.40       9.3 +/-    0.40  0.030 / 0.040
G19     102.8          9.5                 9.3 +/-    2.53      26.1 +/-    2.53  0.030 / 0.040
G25     287.6          56.9               11.7 +/-    1.32      13.7 +/-    1.32  0.050 / 0.050
G29     310.1          30.4                7.9 +/-    1.41      13.8 +/-    1.41  0.170 / 0.200