PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/09-09:12:40
G01     114.2          21.2                5.6 +/-    1.24      11.9 +/-    1.24  0.080 / 0.220
G07     94.6           61.9                5.5 +/-    0.65       6.2 +/-    0.65  0.100 / 0.250
G08     42.9           25.4                3.7 +/-    0.76       7.2 +/-    0.76  0.030 / 0.040
G09     175.4          19.8                5.8 +/-    0.92      12.8 +/-    0.92  0.030 / 0.050
G11     98.2           40.5                6.1 +/-    0.52       8.8 +/-    0.52  0.040 / 0.060
G13     316.0          21.7                0.3 +/-    0.69       0.7 +/-    0.69  0.040 / 0.060
G17     202.5          32.2                6.4 +/-    1.61      10.8 +/-    1.61  0.050 / 0.100
G28     303.8          59.3                4.1 +/-    0.93       4.7 +/-    0.93  0.070 / 0.090
G30     355.9          72.2                4.4 +/-    1.19       4.6 +/-    1.19  0.100 / 0.150