PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/13-22:12:30
G02     204.2          39.1               15.9 +/-    0.94      23.4 +/-    0.94  0.090 / 0.120
G06     150.3          73.3               13.9 +/-    0.63      14.4 +/-    0.63  0.120 / 0.160
G12     309.8          18.6               10.9 +/-    2.53      24.9 +/-    2.53  0.110 / 0.110
G17     36.4           49.2               11.6 +/-    1.26      14.8 +/-    1.26  0.070 / 0.080
G19     5.8            63.7               11.4 +/-    0.61      12.5 +/-    0.61  0.030 / 0.020
G24     293.5          39.8                7.2 +/-    5.94      10.5 +/-    5.94  0.030 / 0.030
G28     106.2          28.5               13.7 +/-    1.04      24.9 +/-    1.04  0.070 / 0.150