PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-19:43:10
G02     8.9            70.8               16.7 +/-   10.24      17.6 +/-   10.24  0.070 / 0.090
G05     162.0          44.2               18.0 +/-    0.89      24.5 +/-    0.89  0.070 / 0.080
G06     46.4           28.3                9.3 +/-    6.70      16.9 +/-    6.70  0.130 / 0.340
G12     251.5          80.0               11.4 +/-    0.58      11.5 +/-    0.58  0.130 / 0.300
G19     88.2           17.6               10.6 +/-   22.72      24.7 +/-   22.72  0.050 / 0.150
G20     197.1          12.3               19.2 +/-   15.99      50.9 +/-   15.99  0.060 / 0.170
G24     220.2          14.1               15.0 +/-    4.52      38.2 +/-    4.52  0.020 / 0.040
G25     310.7          45.9               11.7 +/-    2.09      15.6 +/-    2.09  0.030 / 0.040
G29     296.9          18.7               10.9 +/-    1.29      24.7 +/-    1.29  0.030 / 0.060