PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/27-07:58:10
G01     114.5          21.1                8.6 +/-    1.10      18.4 +/-    1.10  0.040 / 0.060
G07     93.8           62.4                6.0 +/-    0.35       6.7 +/-    0.35  0.040 / 0.060
G08     43.0           25.8                4.2 +/-    0.43       8.0 +/-    0.43  0.110 / 0.260
G09     175.8          20.5                6.1 +/-    0.77      13.3 +/-    0.77  0.070 / 0.270
G11     99.1           40.6                7.7 +/-    0.36      11.1 +/-    0.36  0.020 / 0.040
G13     316.0          21.7                0.5 +/-    1.17       1.1 +/-    1.17  0.030 / 0.040
G17     202.5          31.7                6.2 +/-    2.70      10.5 +/-    2.70  0.090 / 0.150
G28     303.5          59.3                3.8 +/-    0.97       4.3 +/-    0.97  0.080 / 0.190
G30     357.0          72.4                3.5 +/-    1.10       3.6 +/-    1.10  0.100 / 0.130