PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-14:58:10
G07     347.9          62.8                9.2 +/-    0.82      10.2 +/-    0.82  0.080 / 0.110
G08     83.9           53.0                9.9 +/-    0.56      12.0 +/-    0.56  0.080 / 0.100
G09     182.3          62.7               11.8 +/-    1.62      13.1 +/-    1.62  0.040 / 0.050
G11     139.8          19.3               11.7 +/-    1.23      26.3 +/-    1.23  0.040 / 0.050
G23     157.2          28.9               10.9 +/-    1.52      19.5 +/-    1.52  0.110 / 0.370
G27     47.1           26.0                9.6 +/-    1.10      18.3 +/-    1.10  0.110 / 0.380
G28     245.7          36.9               12.6 +/-    1.44      19.4 +/-    1.44  0.030 / 0.050
G30     309.8          41.7                9.2 +/-    1.47      13.0 +/-    1.47  0.030 / 0.050