PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-19:57:40
G10     286.2          48.7               19.6 +/-    0.98      25.1 +/-    0.98  0.090 / 0.130
G15     48.4           35.7               15.4 +/-    0.91      24.2 +/-    0.91  0.110 / 0.100
G20     334.3          65.1               17.2 +/-    0.73      18.8 +/-    0.73  0.050 / 0.050
G21     56.2           77.3               18.6 +/-    0.64      19.0 +/-    0.64  0.040 / 0.050
G24     108.6          22.6               21.4 +/-    1.12      44.2 +/-    1.12  0.110 / 0.230
G27     309.5          29.5               19.4 +/-    1.85      34.4 +/-    1.85  0.100 / 0.240
G29     168.2          16.6               25.2 +/-    1.59      60.3 +/-    1.59  0.050 / 0.090
G32     206.8          23.8               26.2 +/-    1.06      52.7 +/-    1.06  0.040 / 0.090