PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/12-13:58:10
G03     210.5          57.0               12.1 +/-    1.16      14.1 +/-    1.16  0.030 / 0.060
G07     257.1          15.0                7.8 +/-    2.07      19.5 +/-    2.07  0.030 / 0.050
G09     310.5          28.2                5.4 +/-    2.05       9.9 +/-    2.05  0.040 / 0.060
G16     91.1           63.9               10.4 +/-    0.57      11.4 +/-    0.57  0.030 / 0.040
G22     184.5          38.2               10.9 +/-    1.11      16.3 +/-    1.11  0.040 / 0.060
G23     336.8          64.1                8.9 +/-    0.57       9.8 +/-    0.57  0.040 / 0.050
G26     52.2           41.3                9.5 +/-    0.79      13.6 +/-    0.79  0.170 / 0.210
G27     133.6          11.0               -0.8 +/-   37.17      -2.2 +/-   37.17  0.050 / 0.200