PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-16:42:50
G03     226.7          67.4                7.5 +/-    2.67       8.0 +/-    2.67  0.040 / 0.050
G07     249.4          11.9                8.8 +/-    2.61      23.7 +/-    2.61  0.040 / 0.040
G09     303.7          18.4                6.7 +/-   12.30      15.4 +/-   12.30  0.180 / 0.480
G14     100.6          12.9               10.7 +/-    3.45      28.1 +/-    3.45  0.180 / 0.540
G16     135.5          57.9                9.7 +/-    1.89      11.2 +/-    1.89  0.060 / 0.070
G22     190.8          51.9                9.0 +/-    4.06      11.0 +/-    4.06  0.040 / 0.060
G23     319.2          49.0                7.1 +/-    2.52       9.0 +/-    2.52  0.050 / 0.060
G26     73.0           54.3                6.4 +/-   12.86       7.7 +/-   12.86  0.050 / 0.080
G31     52.2           20.7                5.3 +/-    1.96      11.5 +/-    1.96  0.080 / 0.420