PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-19:42:30
G10     277.4          45.0               19.5 +/-    0.94      26.3 +/-    0.94  0.060 / 0.040
G13     38.3           10.5               12.6 +/-    5.83      34.7 +/-    5.83  0.070 / 0.040
G15     51.8           41.7               15.1 +/-    0.87      21.4 +/-    0.87  0.130 / 0.490
G20     318.3          63.9               17.4 +/-    0.83      19.1 +/-    0.83  0.090 / 0.600
G21     26.8           75.8               17.4 +/-    0.43      17.9 +/-    0.43  0.050 / 0.070
G24     114.9          19.0               20.5 +/-    1.44      46.2 +/-    1.44  0.050 / 0.090
G27     314.4          25.0               15.6 +/-    1.72      30.4 +/-    1.72  0.080 / 0.150
G29     168.1          23.3               23.1 +/-    1.88      47.0 +/-    1.88  0.100 / 0.110
G32     205.2          17.3               27.0 +/-    1.81      63.4 +/-    1.81  0.080 / 0.050