PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/24-17:58:00
G02     18.0           65.8                6.4 +/-    0.91       7.0 +/-    0.91  0.030 / 0.050
G05     153.4          52.3               11.0 +/-    1.37      13.5 +/-    1.37  0.030 / 0.050
G06     49.3           21.6                7.2 +/-    0.67      15.2 +/-    0.67  0.080 / 0.060
G12     202.0          75.6                9.1 +/-    1.16       9.3 +/-    1.16  0.050 / 0.070
G19     90.2           18.9                9.9 +/-    1.00      22.3 +/-    1.00  0.030 / 0.030
G25     308.0          46.9                6.6 +/-    1.57       8.7 +/-    1.57  0.030 / 0.030
G29     299.4          19.5                9.1 +/-    1.54      20.2 +/-    1.54  0.100 / 0.150