PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-16:43:00
G03     246.2          71.2               10.8 +/-    0.70      11.3 +/-    0.70  0.170 / 0.270
G09     299.1          12.5                8.3 +/-    4.68      21.8 +/-    4.68  0.150 / 0.320
G14     93.4           20.9               10.2 +/-    2.20      22.0 +/-    2.20  0.030 / 0.040
G16     136.5          53.8               13.6 +/-    0.39      16.4 +/-    0.39  0.040 / 0.040
G22     195.5          60.5               11.8 +/-    0.79      13.3 +/-    0.79  0.040 / 0.050
G23     316.1          46.4               10.5 +/-    0.74      13.8 +/-    0.74  0.050 / 0.060
G26     78.6           53.3               11.5 +/-    1.04      14.0 +/-    1.04  0.270 / 0.380
G31     49.4           23.5                7.5 +/-    2.13      15.3 +/-    2.13  0.220 / 0.200