PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-10:12:40
G08     309.1          19.6                2.9 +/-    1.64       6.5 +/-    1.64  0.030 / 0.050
G10     333.4          60.3                3.1 +/-    0.89       3.5 +/-    0.89  0.040 / 0.040
G14     217.5          31.4                3.9 +/-    1.79       6.7 +/-    1.79  0.050 / 0.030
G15     46.9           9.8                 0.7 +/-    5.77       2.0 +/-    5.77  0.030 / 0.030
G20     37.6           60.3                3.0 +/-    0.41       3.3 +/-    0.41  0.110 / 0.080
G21     134.2          54.0                6.3 +/-    0.47       7.6 +/-    0.47  0.090 / 0.050
G24     72.4           29.2                3.7 +/-    0.98       6.6 +/-    0.98  0.070 / 0.060
G27     277.7          37.0                3.5 +/-    1.46       5.4 +/-    1.46  0.090 / 0.070
G32     222.7          47.4                4.8 +/-    1.95       6.3 +/-    1.95  0.110 / 0.200