PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-16:43:10
G02     65.0           28.5                9.1 +/-    0.85      16.5 +/-    0.85  0.320 / 0.440
G05     50.7           56.6               10.5 +/-    1.26      12.3 +/-    1.26  0.220 / 0.470
G12     181.9          24.3                9.6 +/-    1.02      19.1 +/-    1.02  0.080 / 0.240
G13     120.3          20.0               11.9 +/-    1.60      26.3 +/-    1.60  0.090 / 0.280
G15     159.6          18.7               10.0 +/-    1.72      22.7 +/-    1.72  0.100 / 0.130
G21     277.7          21.2                9.9 +/-    1.89      21.1 +/-    1.89  0.090 / 0.140
G25     227.8          46.5                9.8 +/-    3.20      13.0 +/-    3.20  0.060 / 0.090
G29     333.5          61.3                9.6 +/-    0.62      10.8 +/-    0.62  0.050 / 0.100