PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-05:12:30
G07     329.9          57.3                3.8 +/-    0.68       4.5 +/-    0.68  0.110 / 0.100
G08     106.9          50.7                6.9 +/-    0.67       8.6 +/-    0.67  0.070 / 0.120
G09     189.7          76.0                3.8 +/-    0.66       3.9 +/-    0.66  0.040 / 0.070
G11     149.5          11.4                6.8 +/-    2.58      18.3 +/-    2.58  0.040 / 0.070
G23     154.1          44.7                6.3 +/-    1.00       8.5 +/-    1.00  0.130 / 0.330
G27     58.9           33.3                4.6 +/-    0.69       7.6 +/-    0.69  0.080 / 0.290
G28     232.8          19.6                6.8 +/-    2.18      15.2 +/-    2.18  0.030 / 0.050
G30     298.0          31.0                3.3 +/-    0.99       5.7 +/-    0.99  0.030 / 0.050