PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-00:42:40
G08     309.7          19.3                7.5 +/-    0.93      16.8 +/-    0.93  0.070 / 0.070
G10     329.7          59.7                7.3 +/-    0.63       8.3 +/-    0.63  0.060 / 0.070
G14     217.4          28.4               10.5 +/-    2.04      19.0 +/-    2.04  0.040 / 0.040
G15     46.6           14.8                6.7 +/-    2.36      16.8 +/-    2.36  0.040 / 0.040
G20     319.3          57.0                7.4 +/-    0.81       8.7 +/-    0.81  0.150 / 0.200
G21     132.8          59.6                9.3 +/-    0.54      10.6 +/-    0.54  0.220 / 0.220
G24     73.8           29.4                8.2 +/-    1.29      14.5 +/-    1.29  0.090 / 0.080
G27     277.0          37.5                9.5 +/-    0.94      14.4 +/-    0.94  0.070 / 0.090
G32     222.0          52.9                9.8 +/-    1.35      12.0 +/-    1.35  0.070 / 0.170