PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-13:57:30
G02     28.7           59.6                7.6 +/-    0.96       8.6 +/-    0.96  0.040 / 0.030
G05     151.1          55.8               12.3 +/-    0.57      14.5 +/-    0.57  0.030 / 0.030
G06     49.9           23.4                5.2 +/-    2.03      10.6 +/-    2.03  0.200 / 0.270
G12     215.5          74.4                8.2 +/-    0.46       8.5 +/-    0.46  0.150 / 0.230
G19     96.1           12.1               11.2 +/-    1.96      29.9 +/-    1.96  0.020 / 0.020
G20     198.4          19.5                8.8 +/-    2.49      19.7 +/-    2.49  0.020 / 0.030
G25     303.7          50.4                6.2 +/-    3.26       7.7 +/-    3.26  0.090 / 0.180
G29     306.0          28.9                4.9 +/-    1.26       8.8 +/-    1.26  0.170 / 0.140