PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/26-14:27:50
G02     64.1           28.4                4.7 +/-    0.86       8.5 +/-    0.86  0.030 / 0.030
G05     53.7           60.4                5.2 +/-    0.74       5.9 +/-    0.74  0.030 / 0.030
G12     181.2          25.4                8.5 +/-    1.51      16.5 +/-    1.51  0.050 / 0.060
G13     122.1          18.5                9.8 +/-    2.37      22.4 +/-    2.37  0.050 / 0.070
G15     159.4          17.7               10.4 +/-    0.68      24.1 +/-    0.68  0.150 / 0.350
G21     276.1          20.2                4.2 +/-    1.08       9.3 +/-    1.08  0.150 / 0.380
G25     230.0          48.2                7.4 +/-    1.88       9.5 +/-    1.88  0.050 / 0.120
G29     331.7          58.8                3.0 +/-    0.76       3.5 +/-    0.76  0.050 / 0.130