PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-18:58:00
G01     319.5          17.2                9.2 +/-    0.83      21.7 +/-    0.83  0.030 / 0.050
G08     256.2          13.8               11.3 +/-    1.97      28.9 +/-    1.97  0.040 / 0.040
G10     78.6           53.1               11.2 +/-    0.25      13.7 +/-    0.25  0.070 / 0.050
G11     302.9          23.5               10.3 +/-    1.71      20.8 +/-    1.71  0.080 / 0.040
G14     294.9          70.9               11.1 +/-    0.33      11.6 +/-    0.33  0.150 / 0.320
G20     104.6          29.7               12.0 +/-    1.40      21.2 +/-    1.40  0.180 / 0.350
G27     226.8          10.1               11.8 +/-    3.71      32.9 +/-    3.71  0.090 / 0.170
G31     179.0          38.0               13.0 +/-    1.68      19.6 +/-    1.68  0.090 / 0.150
G32     3.5            68.7               11.4 +/-    0.92      12.1 +/-    0.92  0.180 / 0.330