PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-12:43:00
G10     303.1          53.4                3.3 +/-    0.65       4.0 +/-    0.65  0.060 / 0.070
G14     211.7          14.3                2.1 +/-    3.93       5.2 +/-    3.93  0.050 / 0.090
G15     45.5           23.0                2.4 +/-    2.17       5.0 +/-    2.17  0.030 / 0.020
G20     72.4           20.2                3.3 +/-    1.46       7.2 +/-    1.46  0.030 / 0.030
G21     110.9          69.0                5.4 +/-    0.56       5.8 +/-    0.56  0.120 / 0.210
G24     93.7           28.0                5.1 +/-    2.80       9.3 +/-    2.80  0.120 / 0.220
G27     294.6          36.3                6.4 +/-    2.32       9.9 +/-    2.32  0.340 / 0.560
G32     212.6          36.8                5.4 +/-    1.86       8.3 +/-    1.86  0.270 / 0.490