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               17.7 +/-    0.56      19.1 +/-    0.56  0.090 / 0.270
G05     161.0          47.5               22.4 +/-    0.57      29.1 +/-    0.57  0.120 / 0.350
G06     47.8           25.9               16.4 +/-    0.98      31.4 +/-    0.98  0.030 / 0.040
G12     233.9          78.5               16.4 +/-    0.56      16.7 +/-    0.56  0.020 / 0.030
G19     91.3           15.4               18.3 +/-    0.85      45.0 +/-    0.85  0.060 / 0.090
G20     197.4          15.3               27.6 +/-    3.22      68.2 +/-    3.22  0.060 / 0.100
G24     217.6          11.5               20.0 +/-    3.00      54.2 +/-    3.00  0.040 / 0.060
G25     308.3          47.8               17.7 +/-    1.20      23.0 +/-    1.20  0.040 / 0.050
G29     300.2          22.3               15.6 +/-    1.63      32.4 +/-    1.63  0.070 / 0.130