PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/22-15:28:00
G02     344.9          76.7                5.5 +/-    0.88       5.6 +/-    0.88  0.130 / 0.160
G05     165.0          36.6                7.6 +/-    1.10      11.7 +/-    1.10  0.210 / 0.250
G06     43.3           34.5                5.2 +/-    1.07       8.4 +/-    1.07  0.020 / 0.020
G12     293.2          78.9                6.2 +/-    1.14       6.3 +/-    1.14  0.020 / 0.020
G19     77.3           27.9                5.3 +/-    1.10       9.7 +/-    1.10  0.040 / 0.070
G24     222.0          18.3                4.7 +/-   12.14      10.8 +/-   12.14  0.050 / 0.060
G25     315.5          35.9                6.4 +/-    1.32      10.0 +/-    1.32  0.070 / 0.080
G29     289.6          11.3               -1.4 +/-   19.00      -3.9 +/-   19.00  0.090 / 0.090