PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-13:42:50
G02     29.5           59.0                4.5 +/-    0.98       5.1 +/-    0.98  0.030 / 0.030
G05     150.2          56.5                7.8 +/-    0.51       9.1 +/-    0.51  0.040 / 0.030
G06     50.1           23.1                2.6 +/-    2.16       5.4 +/-    2.16  0.140 / 0.250
G12     214.0          73.9                4.7 +/-    0.86       4.9 +/-    0.86  0.170 / 0.250
G19     96.6           11.7                6.9 +/-    1.75      18.6 +/-    1.75  0.020 / 0.030
G20     198.5          20.0                5.3 +/-    2.26      11.6 +/-    2.26  0.030 / 0.030
G25     303.1          50.8                5.5 +/-    3.56       6.9 +/-    3.56  0.030 / 0.050
G29     306.4          29.1                3.7 +/-    1.31       6.6 +/-    1.31  0.040 / 0.050