PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-21:57:30
G08     310.0          18.3               10.9 +/-    2.35      25.0 +/-    2.35  0.040 / 0.040
G10     340.4          61.2               11.3 +/-    0.95      12.7 +/-    0.95  0.040 / 0.050
G14     219.0          30.7               14.4 +/-    2.54      25.0 +/-    2.54  0.130 / 0.300
G20     43.9           58.7               12.0 +/-    0.83      13.8 +/-    0.83  0.100 / 0.180
G21     136.8          55.7               14.5 +/-    0.94      17.2 +/-    0.94  0.140 / 0.110
G24     72.6           30.4               11.8 +/-    1.28      20.5 +/-    1.28  0.110 / 0.100
G27     272.1          37.4               12.7 +/-    2.39      19.4 +/-    2.39  0.080 / 0.090
G32     224.7          55.1               14.5 +/-    2.28      17.2 +/-    2.28  0.060 / 0.080