PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-08:28:10
G08     288.7          23.2                6.6 +/-    1.79      13.4 +/-    1.79  0.100 / 0.140
G10     19.6           62.7                5.1 +/-    0.70       5.6 +/-    0.70  0.100 / 0.140
G14     233.6          51.0                9.2 +/-    1.01      11.4 +/-    1.01  0.040 / 0.100
G18     317.7          15.3                2.5 +/-    2.23       6.1 +/-    2.23  0.060 / 0.120
G20     71.6           49.6                5.7 +/-    0.60       7.3 +/-    0.60  0.040 / 0.030
G21     148.4          34.6                6.9 +/-    1.19      11.0 +/-    1.19  0.040 / 0.030
G24     51.6           22.7                3.6 +/-    0.70       7.4 +/-    0.70  0.050 / 0.070
G27     251.5          29.7                9.1 +/-    1.18      16.0 +/-    1.18  0.040 / 0.070
G32     249.9          66.5                6.9 +/-    0.70       7.5 +/-    0.70  0.110 / 0.130