PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-02:27:50
G01     297.0          38.3                4.4 +/-    1.76       6.6 +/-    1.76  0.050 / 0.080
G03     309.6          10.9              -13.5 +/-   22.57     -36.9 +/-   22.57  0.050 / 0.090
G10     115.2          33.7                6.0 +/-    1.06       9.7 +/-    1.06  0.100 / 0.100
G11     269.2          28.3                4.7 +/-    1.59       8.5 +/-    1.59  0.060 / 0.080
G14     18.6           60.9                3.4 +/-    1.05       3.9 +/-    1.05  0.030 / 0.030
G22     312.4          33.2                3.0 +/-    1.07       5.0 +/-    1.07  0.030 / 0.040
G25     69.4           17.8                4.7 +/-    1.15      10.9 +/-    1.15  0.050 / 0.100
G31     159.7          73.7                6.2 +/-    0.66       6.4 +/-    0.66  0.050 / 0.070
G32     43.3           48.1                3.3 +/-    1.58       4.2 +/-    1.58  0.020 / 0.060