PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-00:27:50
G08     269.8          19.7                7.9 +/-    1.61      17.6 +/-    1.61  0.140 / 0.270
G10     54.2           59.6                8.8 +/-    0.69      10.0 +/-    0.69  0.110 / 0.340
G14     257.6          63.0                8.3 +/-    0.83       9.2 +/-    0.83  0.140 / 0.380
G18     314.0          29.3                9.6 +/-    2.99      17.1 +/-    2.99  0.200 / 0.320
G20     91.4           39.3                9.0 +/-    0.52      13.3 +/-    0.52  0.020 / 0.030
G21     154.1          19.2               10.0 +/-    2.70      22.4 +/-    2.70  0.030 / 0.040
G24     40.3           10.8                8.4 +/-    1.95      23.1 +/-    1.95  0.120 / 0.350
G27     235.7          18.7               11.7 +/-    1.67      26.5 +/-    1.67  0.110 / 0.320
G31     178.6          27.0               10.3 +/-    1.14      19.3 +/-    1.14  0.050 / 0.060
G32     329.2          75.7                9.3 +/-    0.44       9.5 +/-    0.44  0.050 / 0.070