PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-21:42:40
G02     19.2           65.7                7.7 +/-    0.53       8.4 +/-    0.53  0.250 / 0.340
G05     153.2          51.3               12.8 +/-    0.75      15.9 +/-    0.75  0.330 / 0.500
G06     48.3           23.8                6.8 +/-    0.70      13.7 +/-    0.70  0.050 / 0.050
G12     219.8          78.3                8.2 +/-    0.72       8.3 +/-    0.72  0.030 / 0.040
G19     89.3           19.0                9.8 +/-    0.75      22.2 +/-    0.75  0.070 / 0.130
G24     215.3          10.6               13.8 +/-    3.35      38.1 +/-    3.35  0.080 / 0.150
G25     310.0          44.4                7.3 +/-    2.50      10.0 +/-    2.50  0.020 / 0.030
G29     298.3          18.5                9.0 +/-    1.50      20.5 +/-    1.50  0.020 / 0.030