PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/31-16:42:30
G03     210.9          59.3               13.2 +/-    0.78      15.0 +/-    0.78  0.210 / 0.350
G07     254.4          12.7               13.2 +/-    1.76      34.5 +/-    1.76  0.180 / 0.420
G09     308.5          24.7                8.4 +/-    1.72      16.6 +/-    1.72  0.030 / 0.040
G14     106.5          10.5               12.5 +/-    2.41      34.4 +/-    2.41  0.030 / 0.050
G16     102.7          64.0               11.4 +/-    0.81      12.6 +/-    0.81  0.040 / 0.030
G22     186.2          42.5               11.7 +/-    0.65      16.4 +/-    0.65  0.040 / 0.040
G23     331.1          60.0                9.1 +/-    0.53      10.4 +/-    0.53  0.180 / 0.270
G26     55.6           44.5               10.9 +/-    0.92      14.8 +/-    0.92  0.180 / 0.220
G31     58.0           11.1                8.6 +/-    1.76      23.5 +/-    1.76  0.040 / 0.030