PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/20-15:57:30
G03     240.5          70.6               10.7 +/-    0.78      11.3 +/-    0.78  0.090 / 0.230
G09     300.4          14.3                7.3 +/-    2.37      18.5 +/-    2.37  0.120 / 0.320
G14     96.3           16.4               10.0 +/-    2.25      24.2 +/-    2.25  0.120 / 0.300
G16     142.7          53.0               12.3 +/-    0.94      15.0 +/-    0.94  0.120 / 0.320
G22     193.4          57.4               11.0 +/-    0.49      12.8 +/-    0.49  0.040 / 0.040
G23     315.2          44.9                9.8 +/-    0.67      13.3 +/-    0.67  0.040 / 0.040
G26     82.5           55.7                9.8 +/-    0.68      11.6 +/-    0.68  0.040 / 0.050
G31     49.6           24.6                7.9 +/-    1.78      15.6 +/-    1.78  0.050 / 0.050