PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-16:27:30
G03     239.2          70.2               10.3 +/-    0.32      10.8 +/-    0.32  0.100 / 0.230
G09     300.6          14.2                8.3 +/-    2.94      21.1 +/-    2.94  0.100 / 0.240
G14     95.4           19.5                8.6 +/-    1.79      19.1 +/-    1.79  0.080 / 0.250
G16     132.8          56.0               11.7 +/-    0.69      13.9 +/-    0.69  0.080 / 0.250
G22     193.1          57.7               10.3 +/-    0.44      12.0 +/-    0.44  0.030 / 0.040
G23     318.3          48.5                8.0 +/-    0.31      10.3 +/-    0.31  0.040 / 0.040
G26     74.3           52.5               10.3 +/-    1.11      12.7 +/-    1.11  0.040 / 0.050
G31     50.5           21.5                7.1 +/-    3.35      15.1 +/-    3.35  0.050 / 0.060