PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-20:27:30
G07     316.0          50.7               10.3 +/-    1.27      12.9 +/-    1.27  0.210 / 0.330
G08     122.9          46.1               13.0 +/-    0.43      17.2 +/-    0.43  0.130 / 0.380
G09     257.7          82.6               14.3 +/-    0.61      14.4 +/-    0.61  0.060 / 0.050
G16     43.4           17.0                7.6 +/-    3.56      18.0 +/-    3.56  0.060 / 0.080
G23     149.3          52.3               12.0 +/-    0.88      14.7 +/-    0.88  0.050 / 0.050
G27     67.7           35.9                9.5 +/-    0.97      14.9 +/-    0.97  0.050 / 0.050
G28     228.9          20.1               12.8 +/-    1.48      28.2 +/-    1.48  0.150 / 0.460
G30     293.9          29.9               11.3 +/-    2.35      19.8 +/-    2.35  0.180 / 0.420