PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-22:58:00
G08     309.1          19.4               20.7 +/-    1.10      46.2 +/-    1.10  0.030 / 0.020
G10     328.5          59.3               22.0 +/-    0.77      25.1 +/-    0.77  0.030 / 0.020
G14     217.7          31.5               29.7 +/-    1.83      50.5 +/-    1.83  0.310 / 0.320
G15     46.6           11.7               18.7 +/-    3.11      50.2 +/-    3.11  0.060 / 0.070
G18     37.2           59.8               23.5 +/-    0.84      26.7 +/-    0.84  0.030 / 0.040
G21     133.1          56.1               26.5 +/-    0.58      31.2 +/-    0.58  0.030 / 0.040
G24     76.6           30.6               22.5 +/-    0.92      38.8 +/-    0.92  0.050 / 0.070
G27     274.1          37.7               25.7 +/-    2.29      38.8 +/-    2.29  0.100 / 0.080
G32     222.8          48.1               25.4 +/-    2.78      32.8 +/-    2.78  0.120 / 0.170