PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-17:43:10
G03     188.8          20.5               12.4 +/-    2.28      26.9 +/-    2.28  0.050 / 0.090
G07     292.0          41.0               10.8 +/-    2.87      15.5 +/-    2.87  0.120 / 0.080
G08     141.2          27.0               12.0 +/-    1.99      22.3 +/-    1.99  0.030 / 0.030
G09     320.5          60.2               10.8 +/-    1.17      12.3 +/-    1.17  0.030 / 0.030
G16     44.7           45.4                9.0 +/-    0.62      12.1 +/-    0.62  0.060 / 0.100
G23     102.9          81.7               10.0 +/-    0.30      10.1 +/-    0.30  0.060 / 0.100
G26     43.7           16.3                8.6 +/-    3.11      20.7 +/-    3.11  0.290 / 0.210
G27     104.2          32.8               11.9 +/-    1.09      19.7 +/-    1.09  0.260 / 0.290
G30     272.7          12.2                9.2 +/-    5.10      24.3 +/-    5.10  0.190 / 0.270