PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-17:57:50
G08     319.8          12.2                7.9 +/-    2.99      21.0 +/-    2.99  0.040 / 0.040
G10     304.9          54.3                8.8 +/-    1.00      10.6 +/-    1.00  0.030 / 0.040
G14     211.3          16.2               11.0 +/-    2.93      26.6 +/-    2.93  0.200 / 0.340
G15     45.9           26.1                6.8 +/-    2.79      12.9 +/-    2.79  0.120 / 0.290
G20     3.8            64.9                8.7 +/-    0.62       9.5 +/-    0.62  0.160 / 0.280
G21     111.4          69.0               11.0 +/-    0.60      11.7 +/-    0.60  0.230 / 0.270
G24     88.0           27.3                8.8 +/-    1.15      16.3 +/-    1.15  0.080 / 0.110
G27     297.3          34.8                8.5 +/-    5.46      13.5 +/-    5.46  0.070 / 0.110
G32     212.6          36.4               10.6 +/-    1.71      16.5 +/-    1.71  0.160 / 0.170