PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-19:42:30
G10     250.5          28.3               11.0 +/-    1.22      19.9 +/-    1.22  0.040 / 0.060
G13     53.1           28.8                8.9 +/-    0.59      16.0 +/-    0.59  0.040 / 0.060
G15     87.5           57.9               11.7 +/-    0.66      13.6 +/-    0.66  0.070 / 0.160
G16     295.5          15.9                8.5 +/-    2.78      20.7 +/-    2.78  0.060 / 0.210
G20     270.8          51.6               11.2 +/-    0.68      13.9 +/-    0.68  0.140 / 0.840
G21     333.2          59.3               10.7 +/-    0.70      12.3 +/-    0.70  0.140 / 0.790
G26     268.2          15.5               11.1 +/-    1.76      27.2 +/-    1.76  0.030 / 0.040
G29     163.6          50.9               10.9 +/-    1.69      13.6 +/-    1.69  0.030 / 0.040