PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-13:42:30
G02     29.5           59.0                4.6 +/-    0.50       5.2 +/-    0.50  0.040 / 0.040
G05     150.2          56.5                7.2 +/-    0.66       8.4 +/-    0.66  0.030 / 0.030
G06     50.1           23.1                1.7 +/-    0.42       3.4 +/-    0.42  0.030 / 0.030
G12     214.0          73.9                5.3 +/-    0.68       5.5 +/-    0.68  0.030 / 0.040
G19     96.6           11.7                6.1 +/-    1.35      16.5 +/-    1.35  0.110 / 0.350
G20     198.5          20.0                6.5 +/-    3.26      14.3 +/-    3.26  0.120 / 0.340
G25     303.1          50.8                4.5 +/-    0.84       5.7 +/-    0.84  0.070 / 0.120
G29     306.4          29.1                3.3 +/-    1.22       5.8 +/-    1.22  0.060 / 0.150