PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-12:13:00
G01     222.8          13.4                5.1 +/-    3.51      13.1 +/-    3.51  0.090 / 0.200
G03     268.8          70.4                5.3 +/-    0.54       5.6 +/-    0.54  0.100 / 0.180
G09     297.2          11.0               -3.5 +/-   29.66      -9.5 +/-   29.66  0.190 / 0.440
G14     89.4           24.8                5.8 +/-    0.50      11.5 +/-    0.50  0.220 / 0.330
G16     138.8          51.0                8.1 +/-    1.03      10.1 +/-    1.03  0.030 / 0.050
G22     198.2          63.8                5.3 +/-    1.68       5.8 +/-    1.68  0.030 / 0.050
G23     314.0          44.6                4.5 +/-    1.30       6.1 +/-    1.30  0.030 / 0.030
G26     84.0           53.5                5.0 +/-    0.62       6.1 +/-    0.62  0.030 / 0.040
G31     48.0           25.7                4.5 +/-    0.78       8.6 +/-    0.78  0.050 / 0.100