PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/25-18:42:50
G02     62.8           30.9                8.6 +/-    0.51      14.7 +/-    0.51  0.110 / 0.320
G05     51.7           56.8                8.0 +/-    0.22       9.3 +/-    0.22  0.090 / 0.360
G12     183.0          26.8               12.2 +/-    2.14      22.9 +/-    2.14  0.050 / 0.130
G13     121.8          18.9               11.2 +/-    2.20      25.3 +/-    2.20  0.050 / 0.130
G15     161.0          17.0               14.5 +/-    3.11      34.3 +/-    3.11  0.050 / 0.070
G21     276.3          20.1               10.2 +/-    1.18      22.3 +/-    1.18  0.060 / 0.080
G25     229.9          47.8               11.2 +/-    1.94      14.5 +/-    1.94  0.100 / 0.440
G29     332.8          60.2                8.3 +/-    0.75       9.4 +/-    0.75  0.090 / 0.360