PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-00:57:50
G08     319.4          12.3                9.3 +/-    1.05      24.6 +/-    1.05  0.040 / 0.050
G10     304.3          53.6               11.4 +/-    0.85      13.8 +/-    0.85  0.050 / 0.050
G14     211.6          18.4               13.3 +/-    1.86      30.5 +/-    1.86  0.030 / 0.050
G15     45.7           25.0               10.0 +/-    1.37      19.5 +/-    1.37  0.030 / 0.040
G18     8.0            65.1               10.4 +/-    0.77      11.3 +/-    0.77  0.080 / 0.150
G20     75.6           13.7                9.7 +/-    1.62      24.9 +/-    1.62  0.060 / 0.120
G21     111.3          69.9               13.8 +/-    0.96      14.6 +/-    0.96  0.100 / 0.560
G24     93.2           28.4               12.6 +/-    1.62      22.7 +/-    1.62  0.110 / 0.630
G27     292.4          36.9               12.1 +/-    0.82      18.6 +/-    0.82  0.060 / 0.100
G32     213.6          35.7               15.6 +/-    1.66      24.5 +/-    1.66  0.080 / 0.080