PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/06-18:27:50
G03     208.8          57.9               12.0 +/-    0.69      13.8 +/-    0.69  0.050 / 0.070
G07     255.4          13.6               11.6 +/-    2.06      29.9 +/-    2.06  0.070 / 0.070
G09     309.0          25.5                9.6 +/-    1.76      18.6 +/-    1.76  0.140 / 0.210
G16     101.3          64.5               13.3 +/-    0.92      14.5 +/-    0.92  0.120 / 0.330
G22     187.2          42.3               12.3 +/-    0.57      17.2 +/-    0.57  0.030 / 0.030
G23     330.7          60.0               10.7 +/-    0.38      12.1 +/-    0.38  0.040 / 0.040
G31     58.5           10.8                8.7 +/-    1.81      23.9 +/-    1.81  0.030 / 0.050