PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-13:28:00
G07     21.6           68.8                5.4 +/-    0.79       5.8 +/-    0.79  0.040 / 0.050
G08     60.1           46.6                4.4 +/-    0.44       5.7 +/-    0.44  0.040 / 0.060
G09     178.1          45.8                9.3 +/-    1.11      12.3 +/-    1.11  0.140 / 0.270
G11     127.9          29.1                8.8 +/-    2.11      15.7 +/-    2.11  0.110 / 0.310
G18     112.6          11.4                6.2 +/-    1.58      16.8 +/-    1.58  0.090 / 0.170
G23     159.9          16.1                6.9 +/-    1.05      16.6 +/-    1.05  0.080 / 0.170
G27     39.7           15.5                6.2 +/-    1.66      15.2 +/-    1.66  0.030 / 0.040
G28     261.6          46.8                7.9 +/-    1.17      10.3 +/-    1.17  0.030 / 0.040
G30     321.7          51.7                7.2 +/-    1.16       8.8 +/-    1.16  0.070 / 0.090