PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-15:12:40
G07     313.8          49.7               14.2 +/-    0.65      17.9 +/-    0.65  0.050 / 0.060
G08     123.2          45.0               17.8 +/-    0.73      24.0 +/-    0.73  0.040 / 0.060
G09     264.1          83.0               16.8 +/-    1.05      16.9 +/-    1.05  0.050 / 0.050
G16     43.2           17.0               10.3 +/-    3.42      24.4 +/-    3.42  0.050 / 0.040
G23     147.8          52.7               17.0 +/-    0.88      20.8 +/-    0.88  0.100 / 0.160
G27     70.7           36.6               15.5 +/-    0.88      23.9 +/-    0.88  0.070 / 0.170
G28     227.7          18.1               16.8 +/-    3.22      38.6 +/-    3.22  0.190 / 0.360
G30     291.1          26.4               13.9 +/-    2.01      26.2 +/-    2.01  0.090 / 0.400