PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/26-17:58:00
G07     305.4          47.7               10.2 +/-    2.51      13.2 +/-    2.51  0.110 / 0.110
G08     131.5          36.7               10.6 +/-    2.00      16.3 +/-    2.00  0.080 / 0.080
G09     315.0          72.4               10.3 +/-    0.45      10.8 +/-    0.45  0.040 / 0.030
G16     42.0           33.9                7.5 +/-    1.33      12.2 +/-    1.33  0.040 / 0.030
G23     138.2          70.5                9.7 +/-    0.62      10.2 +/-    0.62  0.070 / 0.060
G27     89.3           37.1               10.0 +/-    1.04      15.2 +/-    1.04  0.080 / 0.070
G30     281.9          19.4               11.6 +/-    1.48      25.8 +/-    1.48  0.080 / 0.170