PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-02:27:40
G01     308.1          32.3                6.7 +/-    1.18      11.3 +/-    1.18  0.070 / 0.120
G10     104.2          42.0                7.8 +/-    0.45      11.0 +/-    0.45  0.060 / 0.130
G11     281.8          29.3                8.3 +/-    1.61      14.7 +/-    1.61  0.020 / 0.040
G14     357.7          67.0                8.0 +/-    0.76       8.7 +/-    0.76  0.030 / 0.040
G18     116.1          15.8                6.6 +/-    1.66      16.1 +/-    1.66  0.090 / 0.190
G22     308.9          24.2                7.7 +/-    1.59      15.3 +/-    1.59  0.100 / 0.150
G25     80.5           15.7                6.4 +/-    1.63      15.6 +/-    1.63  0.090 / 0.260
G31     171.7          61.7                9.9 +/-    1.11      11.1 +/-    1.11  0.100 / 0.200
G32     31.1           55.7                5.4 +/-    0.73       6.3 +/-    0.73  0.040 / 0.050