PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/19-21:58:10
G01     309.4          31.3                9.4 +/-    1.36      16.0 +/-    1.36  0.120 / 0.130
G10     102.7          42.8               10.7 +/-    0.52      14.9 +/-    0.52  0.130 / 0.120
G11     285.1          28.4                9.4 +/-    1.08      17.0 +/-    1.08  0.070 / 0.120
G14     351.9          68.0                8.2 +/-    0.40       8.8 +/-    0.40  0.090 / 0.120
G18     115.6          15.5               10.4 +/-    1.75      25.6 +/-    1.75  0.040 / 0.030
G22     308.3          22.6                9.7 +/-    2.84      20.1 +/-    2.84  0.040 / 0.030
G25     84.1           15.6               11.6 +/-    1.79      28.3 +/-    1.79  0.100 / 0.190
G31     174.0          59.3               11.1 +/-    0.54      12.7 +/-    0.54  0.080 / 0.170
G32     30.7           55.9                8.7 +/-    0.88      10.3 +/-    0.88  0.040 / 0.030