PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/18-22:13:00
G08     317.6          14.1                7.2 +/-    1.32      18.2 +/-    1.32  0.060 / 0.080
G10     311.5          56.0                8.6 +/-    0.99      10.1 +/-    0.99  0.040 / 0.070
G14     212.9          19.2               11.5 +/-    2.49      25.8 +/-    2.49  0.040 / 0.040
G15     45.9           25.3                8.1 +/-    0.67      15.7 +/-    0.67  0.030 / 0.050
G20     13.3           64.2                9.4 +/-    0.44      10.3 +/-    0.44  0.140 / 0.640
G21     118.3          67.7               10.6 +/-    0.58      11.4 +/-    0.58  0.140 / 0.540
G24     84.8           28.5               10.0 +/-    0.84      18.1 +/-    0.84  0.090 / 0.340
G27     291.2          36.5                9.1 +/-    0.78      14.0 +/-    0.78  0.100 / 0.330
G32     214.7          41.9               11.6 +/-    2.50      16.4 +/-    2.50  0.060 / 0.140