PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-17:27:40
G02     22.9           62.3                9.8 +/-    0.88      10.9 +/-    0.88  0.110 / 0.180
G05     150.0          55.9               12.4 +/-    0.76      14.7 +/-    0.76  0.170 / 0.320
G06     50.2           19.8                8.4 +/-    2.93      18.5 +/-    2.93  0.170 / 0.280
G12     211.9          75.1                9.5 +/-    0.16       9.8 +/-    0.16  0.120 / 0.220
G19     95.1           11.8                8.8 +/-    2.44      23.6 +/-    2.44  0.050 / 0.050
G25     305.5          47.9               10.5 +/-    1.90      13.6 +/-    1.90  0.040 / 0.040
G29     302.4          23.3               10.8 +/-    1.10      22.0 +/-    1.10  0.040 / 0.030