PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-09:42:50
G08     314.1          16.8                4.8 +/-    2.46      11.3 +/-    2.46  0.040 / 0.040
G10     321.8          58.4                4.7 +/-    0.54       5.4 +/-    0.54  0.040 / 0.040
G14     214.5          25.6                6.3 +/-    1.47      12.2 +/-    1.47  0.070 / 0.070
G15     46.0           14.8                1.0 +/-    2.12       2.6 +/-    2.12  0.070 / 0.060
G20     25.4           62.5                5.6 +/-    1.74       6.2 +/-    1.74  0.110 / 0.180
G21     127.4          59.9                6.9 +/-    0.97       7.8 +/-    0.97  0.220 / 0.210
G24     79.7           29.3                6.6 +/-    1.01      11.8 +/-    1.01  0.040 / 0.030
G27     285.7          37.0                5.3 +/-    1.04       8.2 +/-    1.04  0.030 / 0.020
G32     218.3          41.3                7.4 +/-    1.14      10.6 +/-    1.14  0.050 / 0.070