PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/07-07:28:10
G08     319.5          11.7                0.6 +/-   17.68       1.6 +/-   17.68  0.120 / 0.250
G10     313.3          56.3                4.0 +/-    1.55       4.7 +/-    1.55  0.160 / 0.280
G14     214.1          17.2                5.9 +/-    1.81      14.0 +/-    1.81  0.040 / 0.060
G15     45.6           18.9                3.2 +/-    2.15       7.3 +/-    2.15  0.040 / 0.060
G20     57.3           46.6                4.8 +/-    0.91       6.3 +/-    0.91  0.070 / 0.070
G21     120.8          66.7                6.0 +/-    0.46       6.4 +/-    0.46  0.050 / 0.060
G24     85.8           29.4                7.2 +/-    1.03      12.8 +/-    1.03  0.090 / 0.080
G27     287.6          37.5                6.5 +/-    1.10       9.9 +/-    1.10  0.090 / 0.090
G32     215.6          44.0                7.1 +/-    1.19       9.7 +/-    1.19  0.210 / 0.370