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                6.6 +/-    1.69      12.4 +/-    1.69  0.120 / 0.160
G05     48.0           52.7                7.8 +/-    0.66       9.6 +/-    0.66  0.110 / 0.190
G12     181.3          20.7                9.5 +/-    1.19      20.5 +/-    1.19  0.080 / 0.220
G13     116.9          22.4                9.2 +/-    1.58      19.1 +/-    1.58  0.080 / 0.210
G15     157.7          21.8                9.2 +/-    1.47      19.3 +/-    1.47  0.100 / 0.160
G21     280.9          23.5               10.2 +/-    1.51      20.6 +/-    1.51  0.080 / 0.180
G25     223.8          43.3               10.1 +/-    2.22      13.9 +/-    2.22  0.030 / 0.040
G29     336.4          65.2                8.3 +/-    0.92       9.0 +/-    0.92  0.030 / 0.040