PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-05:12:30
G10     266.9          39.1                4.6 +/-    0.75       6.8 +/-    0.75  0.150 / 0.240
G13     41.8           17.8                4.2 +/-    3.61       9.7 +/-    3.61  0.300 / 0.160
G15     58.5           47.8                4.6 +/-    1.14       5.9 +/-    1.14  0.050 / 0.070
G16     282.6          12.1                4.1 +/-    1.62      11.0 +/-    1.62  0.070 / 0.060
G20     297.4          60.2                3.9 +/-    0.82       4.4 +/-    0.82  0.410 / 0.320
G24     120.2          14.1                6.2 +/-    2.17      15.9 +/-    2.17  0.110 / 0.320
G27     319.5          17.3                5.1 +/-    2.41      12.1 +/-    2.41  0.110 / 0.210
G29     165.6          28.4                6.1 +/-    1.27      11.1 +/-    1.27  0.160 / 0.280