PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/26-19:28:10
G07     317.3          51.3               15.0 +/-    1.51      18.6 +/-    1.51  0.040 / 0.080
G08     122.7          46.6               18.2 +/-    0.97      24.0 +/-    0.97  0.050 / 0.080
G09     247.4          82.6               12.4 +/-    0.70      12.5 +/-    0.70  0.030 / 0.070
G16     43.7           15.7                9.8 +/-    1.39      23.9 +/-    1.39  0.040 / 0.060
G23     149.7          50.3               14.8 +/-    1.07      18.6 +/-    1.07  0.040 / 0.030
G27     66.5           35.7               13.0 +/-    0.68      20.3 +/-    0.68  0.040 / 0.030
G28     229.6          21.0               20.1 +/-    1.64      43.2 +/-    1.64  0.050 / 0.060
G30     294.5          30.1               15.0 +/-    2.04      26.2 +/-    2.04  0.030 / 0.050