PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-14:43:10
G02     26.9           61.1                9.0 +/-    0.53      10.1 +/-    0.53  0.030 / 0.060
G05     153.4          54.1               12.9 +/-    0.92      15.5 +/-    0.92  0.040 / 0.050
G06     49.4           24.0                6.6 +/-    1.28      13.3 +/-    1.28  0.120 / 0.340
G12     219.2          75.5                7.7 +/-    0.74       7.9 +/-    0.74  0.160 / 0.430
G19     95.0           12.8               11.2 +/-    1.55      29.3 +/-    1.55  0.030 / 0.030
G20     198.1          18.5               10.8 +/-    1.26      24.7 +/-    1.26  0.020 / 0.030
G25     304.9          49.7                8.3 +/-    1.32      10.6 +/-    1.32  0.070 / 0.060
G29     304.9          27.8                5.2 +/-    1.73       9.5 +/-    1.73  0.060 / 0.060