PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-01:58:10
G08     270.9          20.2                8.6 +/-    2.44      18.7 +/-    2.44  0.100 / 0.270
G10     48.9           61.0                8.2 +/-    0.67       9.2 +/-    0.67  0.090 / 0.310
G11     313.7          15.3                9.3 +/-    2.95      23.0 +/-    2.95  0.080 / 0.210
G14     257.7          64.3                7.4 +/-    1.23       8.2 +/-    1.23  0.080 / 0.290
G18     85.9           40.4                7.2 +/-    0.76      10.4 +/-    0.76  0.020 / 0.020
G21     153.0          19.8                8.8 +/-    2.63      19.4 +/-    2.63  0.040 / 0.020
G24     42.8           15.3                8.4 +/-    0.84      20.6 +/-    0.84  0.080 / 0.190
G27     234.5          19.1               11.2 +/-    1.35      25.2 +/-    1.35  0.130 / 0.250
G31     180.4          23.6               10.5 +/-    1.19      21.1 +/-    1.19  0.040 / 0.060
G32     307.5          75.3                8.3 +/-    0.57       8.6 +/-    0.57  0.040 / 0.060