PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-15:57:40
G03     229.6          68.6                6.8 +/-    0.57       7.3 +/-    0.57  0.090 / 0.270
G07     248.2          11.0               -5.2 +/-   13.65     -14.1 +/-   13.65  0.110 / 0.260
G09     302.6          16.9                7.0 +/-    1.76      16.5 +/-    1.76  0.040 / 0.030
G14     99.2           14.1                6.9 +/-    1.23      17.7 +/-    1.23  0.040 / 0.040
G16     137.8          56.4                9.2 +/-    0.55      10.7 +/-    0.55  0.180 / 0.210
G22     191.0          53.4                9.3 +/-    0.68      11.3 +/-    0.68  0.280 / 0.240
G23     318.0          47.8                6.8 +/-    0.63       8.8 +/-    0.63  0.130 / 0.350
G26     75.5           54.7                6.9 +/-    0.66       8.2 +/-    0.66  0.120 / 0.410
G31     51.4           21.7                6.5 +/-    2.91      13.7 +/-    2.91  0.040 / 0.050