PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/16-08:12:40
G01     126.1          12.4                4.7 +/-    4.09      12.3 +/-    4.09  0.040 / 0.050
G07     59.5           68.4                3.3 +/-    0.46       3.5 +/-    0.46  0.040 / 0.060
G08     49.1           37.4                2.5 +/-    0.58       3.8 +/-    0.58  0.040 / 0.060
G09     177.2          34.2                7.2 +/-    0.95      11.6 +/-    0.95  0.040 / 0.060
G11     115.9          34.9                6.6 +/-    1.17      10.5 +/-    1.17  0.120 / 0.190
G13     321.5          10.7               -8.5 +/-    7.62     -23.3 +/-    7.62  0.070 / 0.230
G17     199.5          17.9                4.0 +/-    1.20       9.2 +/-    1.20  0.020 / 0.030
G28     278.7          53.8                5.3 +/-    0.80       6.4 +/-    0.80  0.030 / 0.040
G30     333.7          60.7                2.9 +/-    0.79       3.3 +/-    0.79  0.070 / 0.080