PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/18-15:28:00
G01     230.1          21.3                8.5 +/-    2.01      18.1 +/-    2.01  0.140 / 0.190
G03     295.7          67.3                8.2 +/-    0.80       8.8 +/-    0.80  0.280 / 0.260
G14     81.6           26.9                6.2 +/-    1.16      11.6 +/-    1.16  0.100 / 0.130
G16     156.6          35.8                8.9 +/-    1.14      14.0 +/-    1.14  0.090 / 0.190
G22     220.3          73.8                8.9 +/-    1.27       9.2 +/-    1.27  0.040 / 0.040
G23     302.5          32.6                6.6 +/-    1.24      11.0 +/-    1.24  0.040 / 0.030
G26     115.3          52.7                8.3 +/-    0.35      10.1 +/-    0.35  0.030 / 0.030
G31     42.8           39.3                6.3 +/-    1.13       9.3 +/-    1.13  0.030 / 0.030
G32     93.1           13.3                7.1 +/-    2.40      18.4 +/-    2.40  0.130 / 0.180