PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-03:13:10
G08     295.3          22.1                9.0 +/-    2.25      18.9 +/-    2.25  0.130 / 0.130
G10     12.4           62.7                9.6 +/-    1.45      10.6 +/-    1.45  0.070 / 0.090
G14     229.8          46.6               11.0 +/-    2.82      14.4 +/-    2.82  0.040 / 0.030
G18     317.9          11.2               -7.4 +/-   22.28     -20.2 +/-   22.28  0.040 / 0.030
G20     66.1           52.1                9.6 +/-    1.46      11.8 +/-    1.46  0.050 / 0.090
G21     147.2          40.3               11.3 +/-    1.12      16.4 +/-    1.12  0.050 / 0.070
G24     55.8           25.4                8.8 +/-    1.79      17.0 +/-    1.79  0.110 / 0.110
G27     254.4          31.7                9.6 +/-    2.60      16.2 +/-    2.60  0.110 / 0.130
G32     245.2          66.8               10.2 +/-    0.30      11.0 +/-    0.30  0.120 / 0.450