PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-17:27:20
G02     22.9           62.3                9.9 +/-    1.04      11.0 +/-    1.04  0.080 / 0.200
G05     150.0          55.9               11.4 +/-    0.42      13.5 +/-    0.42  0.100 / 0.150
G06     50.2           19.8                6.3 +/-    1.30      14.0 +/-    1.30  0.030 / 0.030
G12     211.9          75.1               10.3 +/-    0.75      10.6 +/-    0.75  0.030 / 0.040
G19     95.1           11.8                9.5 +/-    1.20      25.5 +/-    1.20  0.040 / 0.060
G25     305.5          47.9               10.4 +/-    1.94      13.5 +/-    1.94  0.030 / 0.040
G29     302.4          23.3               10.4 +/-    1.40      21.2 +/-    1.40  0.060 / 0.050