PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-12:42:40
G01     118.4          18.2                6.1 +/-    1.41      14.0 +/-    1.41  0.110 / 0.100
G07     86.1           63.6                5.5 +/-    0.39       6.1 +/-    0.39  0.110 / 0.140
G08     44.3           29.2                3.3 +/-    1.70       5.8 +/-    1.70  0.030 / 0.030
G09     175.0          23.3                4.8 +/-    1.08       9.7 +/-    1.08  0.030 / 0.030
G11     103.2          38.6                5.9 +/-    0.79       8.7 +/-    0.79  0.030 / 0.020
G13     318.4          18.0                3.6 +/-    2.38       8.4 +/-    2.38  0.030 / 0.030
G17     201.1          27.5                5.1 +/-    1.89       9.4 +/-    1.89  0.130 / 0.220
G28     294.2          57.5                3.6 +/-    0.95       4.2 +/-    0.95  0.140 / 0.250
G30     343.8          67.2                4.2 +/-    0.41       4.5 +/-    0.41  0.130 / 0.170