PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-05:43:00
G07     317.2          51.8                7.1 +/-    0.96       8.8 +/-    0.96  0.130 / 0.150
G08     115.0          46.3                9.8 +/-    0.85      13.0 +/-    0.85  0.110 / 0.170
G09     196.6          82.4                8.0 +/-    0.66       8.0 +/-    0.66  0.030 / 0.050
G16     43.4           16.4                2.8 +/-    3.23       6.8 +/-    3.23  0.050 / 0.050
G23     150.6          56.9                8.6 +/-    0.51      10.0 +/-    0.51  0.080 / 0.060
G27     70.8           37.2                7.6 +/-    0.73      11.5 +/-    0.73  0.060 / 0.060
G28     228.2          18.0                6.5 +/-    1.75      15.1 +/-    1.75  0.270 / 0.250
G30     291.2          25.5                5.8 +/-    1.11      11.3 +/-    1.11  0.280 / 0.510