PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/18-19:43:00
G08     308.6          19.3               10.2 +/-    1.98      22.9 +/-    1.98  0.070 / 0.070
G10     340.7          61.2                8.9 +/-    0.43      10.0 +/-    0.43  0.070 / 0.070
G14     219.1          29.5               11.4 +/-    0.70      20.1 +/-    0.70  0.040 / 0.060
G20     45.4           58.0                9.5 +/-    0.69      11.0 +/-    0.69  0.040 / 0.050
G21     136.8          55.2               11.4 +/-    0.74      13.5 +/-    0.74  0.130 / 0.230
G24     72.8           30.5                8.8 +/-    0.88      15.3 +/-    0.88  0.090 / 0.210
G27     271.8          37.5               10.9 +/-    1.20      16.5 +/-    1.20  0.070 / 0.110
G32     224.7          55.9               12.5 +/-    0.91      14.8 +/-    0.91  0.050 / 0.080