PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-14:42:50
G07     327.4          55.8                7.9 +/-    1.18       9.4 +/-    1.18  0.070 / 0.150
G08     107.0          51.0               10.1 +/-    0.68      12.6 +/-    0.68  0.080 / 0.130
G09     196.0          76.8                8.1 +/-    0.42       8.3 +/-    0.42  0.050 / 0.050
G11     148.3          11.0                7.2 +/-   22.03      19.7 +/-   22.03  0.040 / 0.050
G23     153.2          42.2               10.7 +/-    1.16      15.1 +/-    1.16  0.030 / 0.050
G27     58.4           33.3                7.6 +/-    0.41      12.5 +/-    0.41  0.040 / 0.050
G28     234.7          26.8               10.2 +/-    1.23      19.2 +/-    1.23  0.060 / 0.080
G30     299.3          32.9                8.7 +/-    1.03      14.4 +/-    1.03  0.050 / 0.080