PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/08-17:42:50
G03     242.3          70.8               10.8 +/-    0.72      11.4 +/-    0.72  0.030 / 0.040
G09     299.8          13.2               10.3 +/-    2.14      26.8 +/-    2.14  0.040 / 0.040
G14     94.6           19.7                9.1 +/-    1.62      20.1 +/-    1.62  0.120 / 0.270
G16     135.7          54.7               11.5 +/-    0.81      13.8 +/-    0.81  0.140 / 0.250
G22     195.8          59.8               12.2 +/-    0.62      13.9 +/-    0.62  0.100 / 0.200
G23     316.6          46.7               10.3 +/-    0.97      13.6 +/-    0.97  0.110 / 0.190
G26     77.0           53.1               12.9 +/-    0.65      15.7 +/-    0.65  0.030 / 0.050
G31     49.8           22.9                7.0 +/-    2.12      14.4 +/-    2.12  0.030 / 0.050