PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/12-16:28:00
G03     187.0          17.3               10.7 +/-    1.90      25.2 +/-    1.90  0.140 / 0.150
G07     295.4          43.1                9.0 +/-    3.14      12.5 +/-    3.14  0.200 / 0.250
G08     139.8          29.0               12.3 +/-    1.85      22.0 +/-    1.85  0.070 / 0.070
G09     320.1          62.6                8.7 +/-    0.54       9.7 +/-    0.54  0.060 / 0.080
G16     43.5           41.7                6.8 +/-    0.73       9.7 +/-    0.73  0.040 / 0.030
G23     117.3          78.9                8.4 +/-    0.53       8.6 +/-    0.53  0.030 / 0.030
G26     44.0           13.2                6.5 +/-    3.17      16.9 +/-    3.17  0.020 / 0.030
G27     100.8          34.0               11.2 +/-    1.07      18.1 +/-    1.07  0.030 / 0.020
G30     275.0          14.4                8.4 +/-    1.41      21.2 +/-    1.41  0.040 / 0.100