PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-17:57:50
G08     313.5          17.4                8.1 +/-    2.17      19.1 +/-    2.17  0.220 / 0.310
G10     320.6          58.1                8.3 +/-    0.60       9.6 +/-    0.60  0.160 / 0.220
G14     214.7          24.9               11.3 +/-    1.71      22.2 +/-    1.71  0.040 / 0.030
G15     46.0           17.9                7.5 +/-    2.37      17.3 +/-    2.37  0.030 / 0.030
G20     24.6           62.7                8.4 +/-    1.76       9.3 +/-    1.76  0.080 / 0.100
G21     127.0          61.0               11.4 +/-    0.49      12.8 +/-    0.49  0.050 / 0.090
G24     77.2           28.4                8.9 +/-    1.24      16.1 +/-    1.24  0.180 / 0.230
G27     286.1          36.8                9.5 +/-    0.64      14.6 +/-    0.64  0.180 / 0.170
G32     217.9          45.5               10.6 +/-    0.81      14.2 +/-    0.81  0.040 / 0.060