PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-17:58:00
G02     18.2           66.6               18.2 +/-    0.65      19.7 +/-    0.65  0.060 / 0.060
G05     161.0          47.5               22.3 +/-    0.93      29.0 +/-    0.93  0.040 / 0.050
G06     47.8           25.9               16.4 +/-    2.18      31.3 +/-    2.18  0.230 / 0.220
G12     233.9          78.5               17.4 +/-    0.36      17.8 +/-    0.36  0.290 / 0.390
G19     91.3           15.4               19.0 +/-    1.01      46.8 +/-    1.01  0.020 / 0.020
G20     197.4          15.3               26.7 +/-    1.13      65.9 +/-    1.13  0.020 / 0.030
G24     217.6          11.5               20.1 +/-    2.60      54.4 +/-    2.60  0.140 / 0.320
G25     308.3          47.8               17.5 +/-    1.22      22.7 +/-    1.22  0.340 / 0.300
G29     300.2          22.3               17.5 +/-    1.10      36.5 +/-    1.10  0.030 / 0.050