PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-03:12:50
G08     290.1          22.2                9.3 +/-    1.17      19.4 +/-    1.17  0.120 / 0.120
G10     23.7           62.4                7.9 +/-    1.06       8.8 +/-    1.06  0.110 / 0.130
G14     234.8          51.1                9.2 +/-    2.05      11.5 +/-    2.05  0.030 / 0.030
G18     317.8          15.6                6.0 +/-    1.11      14.7 +/-    1.11  0.030 / 0.030
G20     73.1           49.2                6.9 +/-    1.36       8.8 +/-    1.36  0.090 / 0.100
G21     149.6          35.2                8.1 +/-    1.81      12.7 +/-    1.81  0.050 / 0.110
G24     51.4           22.9                5.6 +/-    2.70      11.5 +/-    2.70  0.100 / 0.070
G27     249.1          28.9                8.9 +/-    2.90      15.9 +/-    2.90  0.110 / 0.090
G31     181.7          12.4                7.4 +/-    5.71      19.5 +/-    5.71  0.150 / 0.390
G32     257.0          70.8                6.9 +/-    0.44       7.3 +/-    0.44  0.350 / 0.300