PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-16:43:00
G03     226.7          67.4                8.9 +/-    0.79       9.5 +/-    0.79  0.120 / 0.250
G07     249.4          11.9                6.8 +/-   16.10      18.1 +/-   16.10  0.130 / 0.220
G09     303.7          18.4                8.4 +/-    2.70      19.2 +/-    2.70  0.130 / 0.140
G14     100.6          12.9               10.8 +/-    3.51      28.2 +/-    3.51  0.120 / 0.150
G16     135.5          57.9               11.9 +/-    0.77      13.7 +/-    0.77  0.130 / 0.410
G22     190.8          51.9               11.6 +/-    0.55      14.3 +/-    0.55  0.150 / 0.380
G23     319.2          49.0                9.0 +/-    0.73      11.5 +/-    0.73  0.040 / 0.040
G26     73.0           54.3                9.6 +/-    0.80      11.6 +/-    0.80  0.040 / 0.040
G31     52.2           20.7                7.8 +/-    2.39      16.8 +/-    2.39  0.030 / 0.040