PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-18:28:00
G08     285.9          23.1               10.8 +/-    0.66      22.1 +/-    0.66  0.100 / 0.130
G10     27.7           62.0               25.7 +/-    0.41      28.7 +/-    0.41  0.120 / 0.150
G14     235.0          47.8               10.9 +/-    1.45      14.2 +/-    1.45  0.050 / 0.070
G20     77.5           45.7                9.7 +/-    0.79      12.9 +/-    0.79  0.050 / 0.100
G21     150.1          33.1               11.3 +/-    0.85      18.6 +/-    0.85  0.030 / 0.040
G24     51.1           22.8                8.3 +/-    0.81      17.1 +/-    0.81  0.030 / 0.030
G27     246.8          28.2               11.6 +/-    1.31      21.1 +/-    1.31  0.050 / 0.130
G31     182.1          12.8               11.9 +/-    1.79      31.3 +/-    1.79  0.060 / 0.120
G32     266.8          74.6                9.9 +/-    0.46      10.2 +/-    0.46  0.100 / 0.190