PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-21:12:30
G07     311.7          48.6               10.1 +/-    0.67      12.9 +/-    0.67  0.260 / 0.270
G08     126.4          43.5               12.3 +/-    0.42      16.9 +/-    0.42  0.120 / 0.250
G09     285.8          81.1               10.0 +/-    0.57      10.1 +/-    0.57  0.070 / 0.060
G16     42.6           20.7                9.2 +/-    2.04      19.9 +/-    2.04  0.050 / 0.070
G23     147.1          56.9               11.8 +/-    0.41      13.7 +/-    0.41  0.050 / 0.050
G27     72.3           36.6               10.2 +/-    0.76      15.7 +/-    0.76  0.050 / 0.050
G28     226.7          17.0               11.0 +/-    6.97      26.1 +/-    6.97  0.100 / 0.250
G30     291.2          28.1                8.3 +/-    1.60      15.0 +/-    1.60  0.250 / 0.360