PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-21:57:40
G08     303.0          20.8                9.4 +/-    1.84      20.2 +/-    1.84  0.070 / 0.110
G10     356.0          62.4                7.9 +/-    0.53       8.8 +/-    0.53  0.080 / 0.090
G14     223.5          37.4               12.6 +/-    1.43      19.2 +/-    1.43  0.040 / 0.070
G20     56.3           55.0                9.3 +/-    0.24      11.0 +/-    0.24  0.040 / 0.070
G21     142.7          48.4               10.6 +/-    1.18      13.6 +/-    1.18  0.060 / 0.150
G24     64.3           28.9                7.6 +/-    1.23      13.5 +/-    1.23  0.060 / 0.140
G27     262.7          35.3               12.3 +/-    0.97      19.4 +/-    0.97  0.110 / 0.310
G32     233.4          62.2               12.6 +/-    0.84      14.1 +/-    0.84  0.110 / 0.280