PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-13:27:50
G03     220.0          63.1                9.1 +/-    1.06      10.1 +/-    1.06  0.140 / 0.390
G07     252.2          10.8               -6.0 +/-    9.52     -16.6 +/-    9.52  0.160 / 0.370
G09     307.1          23.1                6.5 +/-    1.15      13.2 +/-    1.15  0.050 / 0.060
G14     103.6          14.1                7.1 +/-    2.12      18.1 +/-    2.12  0.040 / 0.060
G16     108.1          62.8                9.4 +/-    0.88      10.4 +/-    0.88  0.130 / 0.360
G22     186.8          45.3                8.3 +/-    0.41      11.1 +/-    0.41  0.030 / 0.030
G23     329.4          58.4                7.0 +/-    0.52       8.1 +/-    0.52  0.030 / 0.030
G26     58.3           46.1                6.5 +/-    1.11       8.6 +/-    1.11  0.030 / 0.030
G31     56.5           12.7                5.8 +/-    1.27      15.3 +/-    1.27  0.040 / 0.040