PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-02:57:50
G01     300.5          36.9                6.8 +/-    1.19      10.4 +/-    1.19  0.030 / 0.030
G10     112.3          36.1                7.0 +/-    0.31      10.9 +/-    0.31  0.030 / 0.040
G11     272.5          28.9                6.8 +/-    1.54      12.3 +/-    1.54  0.050 / 0.100
G14     13.6           62.7                6.7 +/-    1.06       7.4 +/-    1.06  0.060 / 0.090
G22     311.6          30.8                7.6 +/-    1.76      13.1 +/-    1.76  0.040 / 0.040
G25     72.2           17.4                7.8 +/-    0.80      18.3 +/-    0.80  0.030 / 0.040
G31     163.7          70.8                7.0 +/-    0.73       7.3 +/-    0.73  0.100 / 0.130
G32     40.4           49.9                5.9 +/-    0.55       7.4 +/-    0.55  0.100 / 0.110