PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-18:12:40
G03     187.0          15.5               10.6 +/-    2.65      26.1 +/-    2.65  0.110 / 0.090
G07     298.1          44.0                9.8 +/-    3.17      13.3 +/-    3.17  0.160 / 0.110
G08     136.7          31.8               11.5 +/-    2.04      19.4 +/-    2.04  0.240 / 0.280
G09     319.3          66.1               10.7 +/-    0.50      11.5 +/-    0.50  0.190 / 0.240
G16     42.8           40.2                8.8 +/-    0.52      12.7 +/-    0.52  0.030 / 0.030
G23     126.3          77.0               10.0 +/-    0.37      10.3 +/-    0.37  0.030 / 0.030
G26     44.4           11.7                7.2 +/-    3.10      19.4 +/-    3.10  0.200 / 0.260
G27     97.4           35.3               11.5 +/-    1.44      18.1 +/-    1.44  0.320 / 0.390
G30     277.0          15.5                8.0 +/-    1.16      19.7 +/-    1.16  0.060 / 0.090