PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-22:27:50
G08     320.4          11.5                4.2 +/-   26.76      11.5 +/-   26.76  0.080 / 0.060
G10     304.5          54.1                9.7 +/-    1.12      11.6 +/-    1.12  0.080 / 0.080
G14     211.5          15.1               13.0 +/-    4.43      32.3 +/-    4.43  0.190 / 0.380
G15     46.2           29.7                7.2 +/-    1.23      12.8 +/-    1.23  0.140 / 0.410
G20     3.2            65.0                9.7 +/-    0.88      10.6 +/-    0.88  0.130 / 0.120
G21     109.0          71.2               11.6 +/-    0.64      12.2 +/-    0.64  0.090 / 0.130
G24     89.9           27.6                8.8 +/-    1.35      16.2 +/-    1.35  0.200 / 0.460
G27     296.3          35.4               10.2 +/-    2.99      16.1 +/-    2.99  0.220 / 0.370
G32     212.4          37.6               12.3 +/-    1.60      18.6 +/-    1.60  0.040 / 0.030