PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-03:12:40
G08     278.3          22.3                9.0 +/-    0.54      18.7 +/-    0.54  0.020 / 0.020
G10     33.2           62.7                6.3 +/-    0.46       7.0 +/-    0.46  0.020 / 0.020
G11     317.1          10.5               -7.2 +/-    3.60     -20.0 +/-    3.60  0.070 / 0.140
G14     245.3          59.0                9.7 +/-    0.96      11.1 +/-    0.96  0.090 / 0.150
G18     77.5           45.3              -74.4 +/-   19.97     -99.9 +/-   19.97  0.230 / 0.130
G21     151.1          27.5                9.8 +/-    1.37      18.0 +/-    1.37  0.200 / 0.210
G24     47.1           20.1                4.6 +/-    4.07      10.0 +/-    4.07  0.030 / 0.020
G27     240.5          23.9                9.6 +/-    2.01      19.2 +/-    2.01  0.030 / 0.020
G31     181.2          17.3               10.7 +/-    1.74      25.2 +/-    1.74  0.040 / 0.050
G32     280.5          74.4                8.6 +/-    0.80       8.9 +/-    0.80  0.040 / 0.050