PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-02:42:40
G10     107.5          39.8                6.6 +/-    0.50       9.7 +/-    0.50  0.040 / 0.040
G11     278.2          29.3                7.0 +/-    1.71      12.5 +/-    1.71  0.040 / 0.040
G14     4.3            65.4                5.3 +/-    1.17       5.8 +/-    1.17  0.080 / 0.170
G18     118.1          13.6                7.0 +/-    1.44      17.9 +/-    1.44  0.070 / 0.140
G22     310.0          26.7                3.7 +/-    1.91       7.0 +/-    1.91  0.100 / 0.290
G25     77.3           16.5                4.1 +/-    1.62       9.9 +/-    1.62  0.100 / 0.340
G31     169.3          65.3                7.5 +/-    1.26       8.1 +/-    1.26  0.040 / 0.040
G32     34.9           53.4                3.3 +/-    0.55       4.0 +/-    0.55  0.040 / 0.040