PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-12:43:10
G01     128.9          10.1              -14.3 +/-   25.29     -39.8 +/-   25.29  0.030 / 0.040
G07     45.2           69.7                4.3 +/-    0.50       4.6 +/-    0.50  0.030 / 0.040
G08     51.8           40.6                3.8 +/-    1.42       5.5 +/-    1.42  0.020 / 0.020
G09     176.9          36.9                5.1 +/-    1.27       7.8 +/-    1.27  0.030 / 0.030
G11     120.0          34.0                6.1 +/-    0.93       9.9 +/-    0.93  0.150 / 0.210
G17     199.5          12.8                1.6 +/-    6.09       4.1 +/-    6.09  0.300 / 0.370
G18     105.6          15.4                5.3 +/-    1.32      13.0 +/-    1.32  0.070 / 0.280
G27     37.5           9.2                 3.4 +/-    2.70       9.6 +/-    2.70  0.140 / 0.200
G28     272.3          51.5                4.9 +/-    3.29       6.1 +/-    3.29  0.170 / 0.260
G30     328.9          57.7                3.7 +/-    0.54       4.3 +/-    0.54  0.140 / 0.310