PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/05-13:43:10
G08     317.9          13.2                4.0 +/-    1.44      10.4 +/-    1.44  0.100 / 0.180
G10     314.7          56.5                3.9 +/-    0.72       4.6 +/-    0.72  0.090 / 0.190
G14     214.2          21.2                7.2 +/-    2.21      15.4 +/-    2.21  0.050 / 0.080
G15     45.6           16.8                2.9 +/-    0.99       6.9 +/-    0.99  0.060 / 0.080
G20     77.9           15.1                4.2 +/-    1.70      10.5 +/-    1.70  0.120 / 0.420
G21     123.8          62.5                6.3 +/-    0.59       7.0 +/-    0.59  0.080 / 0.350
G24     85.5           29.8                5.6 +/-    0.77       9.9 +/-    0.77  0.070 / 0.100
G27     285.5          37.8                7.2 +/-    1.03      10.9 +/-    1.03  0.060 / 0.110
G32     216.6          43.8                8.0 +/-    0.83      11.0 +/-    0.83  0.130 / 0.230