PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-20:57:50
G10     271.5          42.0                9.6 +/-    0.87      13.5 +/-    0.87  0.040 / 0.050
G13     40.0           14.4                7.6 +/-    2.28      19.1 +/-    2.28  0.050 / 0.050
G15     56.2           47.0                7.0 +/-    0.62       9.1 +/-    0.62  0.110 / 0.230
G16     275.4          11.4                9.6 +/-    5.32      26.1 +/-    5.32  0.120 / 0.190
G20     306.4          62.1                9.5 +/-    1.03      10.7 +/-    1.03  0.110 / 0.440
G21     10.0           73.3               11.3 +/-    0.78      11.8 +/-    0.78  0.100 / 0.350
G24     119.0          16.2               12.2 +/-    2.61      29.6 +/-    2.61  0.040 / 0.060
G27     317.3          21.2                8.3 +/-    2.95      17.7 +/-    2.95  0.030 / 0.060
G29     167.6          28.0               11.9 +/-    0.81      21.8 +/-    0.81  0.200 / 0.630
G32     204.5          12.3               13.4 +/-    1.73      35.5 +/-    1.73  0.140 / 0.620