PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-01:43:10
G08     318.7          13.0                9.0 +/-    3.91      23.6 +/-    3.91  0.050 / 0.060
G10     309.7          55.5                9.4 +/-    1.74      11.2 +/-    1.74  0.060 / 0.070
G14     212.9          17.2               15.1 +/-    2.86      35.6 +/-    2.86  0.030 / 0.040
G15     45.7           23.7                7.8 +/-    2.96      15.6 +/-    2.96  0.030 / 0.030
G20     320.2          59.5               14.0 +/-    0.72      16.0 +/-    0.72  0.090 / 0.300
G21     115.7          69.5               10.9 +/-    0.88      11.5 +/-    0.88  0.080 / 0.220
G24     87.2           28.6               10.2 +/-    1.14      18.5 +/-    1.14  0.110 / 0.130
G27     291.4          36.8                8.9 +/-    2.19      13.6 +/-    2.19  0.080 / 0.100
G32     214.1          41.7               13.9 +/-    1.03      19.6 +/-    1.03  0.120 / 0.290