PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-04:13:10
G03     316.2          39.4                4.6 +/-    1.54       6.7 +/-    1.54  0.200 / 0.340
G11     237.1          14.1                6.1 +/-    1.07      15.5 +/-    1.07  0.190 / 0.380
G14     59.4           40.7                2.4 +/-    0.66       3.5 +/-    0.66  0.070 / 0.100
G16     166.1          14.9                5.8 +/-    1.36      14.4 +/-    1.36  0.060 / 0.100
G22     307.6          63.7                5.1 +/-    2.22       5.6 +/-    2.22  0.030 / 0.050
G23     284.3          16.6                7.4 +/-    2.85      17.7 +/-    2.85  0.030 / 0.040
G26     141.7          34.9                8.2 +/-    1.64      13.1 +/-    1.64  0.020 / 0.030
G31     40.9           63.0                4.1 +/-    1.07       4.5 +/-    1.07  0.020 / 0.030
G32     74.3           26.4                3.0 +/-    1.82       5.6 +/-    1.82  0.040 / 0.090