PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-23:57:50
G01     317.4          22.7                7.6 +/-    1.96      15.7 +/-    1.96  0.120 / 0.160
G08     257.1          11.7                9.4 +/-   15.21      25.3 +/-   15.21  0.230 / 0.160
G10     86.2           49.3               10.2 +/-    0.98      13.0 +/-    0.98  0.040 / 0.050
G11     301.0          23.2                8.2 +/-    0.98      16.7 +/-    0.98  0.040 / 0.040
G14     300.8          70.3                8.6 +/-    0.79       9.1 +/-    0.79  0.130 / 0.070
G18     300.8          43.5                8.9 +/-    4.39      12.3 +/-    4.39  0.100 / 0.090
G20     109.0          25.4                9.5 +/-    1.06      18.3 +/-    1.06  0.050 / 0.020
G22     302.6          11.5                3.5 +/-   11.66       9.5 +/-   11.66  0.030 / 0.020
G31     173.3          47.1               12.8 +/-    1.44      16.7 +/-    1.44  0.140 / 0.300
G32     14.8           64.8                8.1 +/-    0.53       8.9 +/-    0.53  0.160 / 0.290