PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-10:12:30
G10     310.2          55.4                3.0 +/-    0.41       3.5 +/-    0.41  0.090 / 0.230
G14     213.3          17.1                6.6 +/-    1.70      15.7 +/-    1.70  0.110 / 0.270
G15     45.5           19.7                1.9 +/-    0.79       4.3 +/-    0.79  0.080 / 0.160
G20     70.8           27.4                3.8 +/-    1.34       7.0 +/-    1.34  0.080 / 0.160
G21     118.3          67.0                4.8 +/-    0.82       5.2 +/-    0.82  0.030 / 0.050
G24     88.4           29.2                4.0 +/-    1.06       7.2 +/-    1.06  0.030 / 0.050
G27     289.5          37.3                6.1 +/-    1.31       9.3 +/-    1.31  0.060 / 0.080
G32     214.7          41.8                7.5 +/-    1.42      10.6 +/-    1.42  0.060 / 0.080