PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-19:13:10
G07     320.4          53.9               13.1 +/-    1.01      15.8 +/-    1.01  0.030 / 0.040
G08     117.4          45.5               14.4 +/-    0.67      19.3 +/-    0.67  0.060 / 0.040
G09     268.5          82.7               11.7 +/-    0.86      11.8 +/-    0.86  0.220 / 0.910
G16     42.7           23.4               10.3 +/-    1.53      21.0 +/-    1.53  0.320 / 0.440
G23     149.6          57.7               14.9 +/-    0.85      17.2 +/-    0.85  0.030 / 0.020
G27     73.1           37.7               12.4 +/-    0.74      18.8 +/-    0.74  0.030 / 0.020
G28     227.1          14.7               14.5 +/-   23.46      36.3 +/-   23.46  0.060 / 0.050
G30     291.2          26.6               12.7 +/-    2.15      23.9 +/-    2.15  0.070 / 0.070