PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-08:27:40
G01     61.7           31.0                4.4 +/-    1.02       7.6 +/-    1.02  0.050 / 0.050
G06     182.8          11.2               -8.9 +/-   31.17     -24.2 +/-   31.17  0.030 / 0.040
G07     141.5          22.7                7.5 +/-    1.61      15.5 +/-    1.61  0.070 / 0.150
G11     49.0           24.3                4.1 +/-    2.09       8.1 +/-    2.09  0.090 / 0.140
G13     266.3          35.4                6.6 +/-    2.23      10.4 +/-    2.23  0.110 / 0.200
G15     295.3          16.6                3.6 +/-    1.85       8.5 +/-    1.85  0.110 / 0.220
G17     257.8          77.0                7.1 +/-    0.36       7.3 +/-    0.36  0.030 / 0.020
G19     231.6          51.0                7.5 +/-    2.15       9.3 +/-    2.15  0.020 / 0.020
G28     34.3           56.8                5.6 +/-    1.31       6.6 +/-    1.31  0.150 / 0.350
G30     142.1          53.5                8.9 +/-    0.42      10.8 +/-    0.42  0.110 / 0.340