PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-19:27:50
G02     6.1            72.0               21.2 +/-    8.92      22.1 +/-    8.92  0.080 / 0.090
G05     163.1          42.4               14.5 +/-    0.91      20.3 +/-    0.91  0.060 / 0.100
G06     45.7           29.8              -10.2 +/-   27.39     -17.9 +/-   27.39  0.140 / 0.260
G12     263.4          80.0                7.6 +/-    0.72       7.7 +/-    0.72  0.170 / 0.290
G19     86.7           18.6              -20.4 +/-   60.13     -46.4 +/-   60.13  0.020 / 0.040
G20     197.2          10.7                0.3 +/-   31.70       0.9 +/-   31.70  0.020 / 0.030
G24     221.3          15.2               10.3 +/-    1.69      25.6 +/-    1.69  0.050 / 0.070
G25     311.9          44.2               10.3 +/-    2.33      14.1 +/-    2.33  0.040 / 0.060
G29     295.7          17.7                8.5 +/-    3.02      19.9 +/-    3.02  0.120 / 0.190