PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-02:58:00
G01     310.5          30.3                8.7 +/-    1.11      15.2 +/-    1.11  0.030 / 0.040
G10     100.6          44.2               10.3 +/-    0.46      14.0 +/-    0.46  0.040 / 0.040
G11     285.1          29.2               12.1 +/-    1.03      21.5 +/-    1.03  0.190 / 0.170
G14     350.6          68.4                8.3 +/-    0.55       8.8 +/-    0.55  0.070 / 0.140
G18     113.9          18.3                8.7 +/-    1.54      20.0 +/-    1.54  0.070 / 0.120
G22     307.7          22.0               12.1 +/-    3.09      25.3 +/-    3.09  0.090 / 0.120
G25     83.2           14.8                9.6 +/-    1.57      23.9 +/-    1.57  0.030 / 0.030
G31     172.7          58.6               12.6 +/-    0.40      14.5 +/-    0.40  0.030 / 0.040
G32     27.8           57.6                7.8 +/-    1.08       9.0 +/-    1.08  0.090 / 0.190