PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/23-02:12:40
G08     317.6          13.9                7.7 +/-    2.09      19.6 +/-    2.09  0.060 / 0.070
G10     313.0          56.3                9.1 +/-    1.87      10.7 +/-    1.87  0.070 / 0.060
G14     213.6          18.8               14.3 +/-    1.91      32.4 +/-    1.91  0.040 / 0.040
G15     45.7           21.8                7.2 +/-    2.29      15.1 +/-    2.29  0.040 / 0.040
G20     330.8          62.2               16.9 +/-    0.51      18.9 +/-    0.51  0.310 / 0.480
G21     119.7          67.8               12.3 +/-    0.78      13.2 +/-    0.78  0.260 / 0.630
G24     85.0           29.0                8.9 +/-    1.73      16.0 +/-    1.73  0.080 / 0.110
G27     288.8          37.2               12.4 +/-    2.00      18.9 +/-    2.00  0.070 / 0.110
G32     215.3          43.7               13.6 +/-    0.98      18.7 +/-    0.98  0.140 / 0.320