PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-17:12:30
G02     67.9           26.4                7.1 +/-    0.83      13.4 +/-    0.83  0.030 / 0.060
G05     48.0           52.7                7.5 +/-    0.80       9.2 +/-    0.80  0.030 / 0.050
G12     181.3          20.7                9.7 +/-    1.89      21.1 +/-    1.89  0.080 / 0.250
G13     116.9          22.4               11.3 +/-    0.72      23.4 +/-    0.72  0.080 / 0.210
G15     157.7          21.8               10.0 +/-    1.94      21.0 +/-    1.94  0.080 / 0.230
G21     280.9          23.5                9.5 +/-    1.47      19.1 +/-    1.47  0.090 / 0.270
G25     223.8          43.3               10.0 +/-    2.17      13.7 +/-    2.17  0.100 / 0.150
G29     336.4          65.2                7.1 +/-    0.89       7.7 +/-    0.89  0.080 / 0.170