PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/14-16:12:30
G03     187.9          20.0                8.7 +/-    1.94      19.0 +/-    1.94  0.090 / 0.210
G07     292.1          41.4                8.6 +/-    2.14      12.2 +/-    2.14  0.150 / 0.160
G08     142.1          26.4               10.2 +/-    1.10      19.3 +/-    1.10  0.040 / 0.030
G09     320.4          59.4                8.9 +/-    0.91      10.2 +/-    0.91  0.040 / 0.030
G16     44.7           44.6                7.5 +/-    0.85      10.2 +/-    0.85  0.190 / 0.240
G23     102.9          81.3                6.7 +/-    0.45       6.8 +/-    0.45  0.220 / 0.240
G26     43.7           15.7                7.2 +/-    2.60      17.6 +/-    2.60  0.330 / 0.300
G27     104.4          32.6                7.9 +/-    0.92      13.1 +/-    0.92  0.220 / 0.290
G30     272.7          12.6                7.8 +/-   14.47      20.7 +/-   14.47  0.060 / 0.090