PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-03:27:50
G01     318.8          19.7                6.5 +/-    1.41      14.5 +/-    1.41  0.110 / 0.260
G08     260.3          13.2                9.8 +/-    3.36      25.5 +/-    3.36  0.150 / 0.260
G10     81.5           51.4                8.2 +/-    0.85      10.2 +/-    0.85  0.050 / 0.040
G11     303.0          22.8                7.3 +/-    1.28      15.1 +/-    1.28  0.060 / 0.050
G14     295.6          70.6                8.0 +/-    0.80       8.4 +/-    0.80  0.080 / 0.080
G18     303.9          41.6                7.5 +/-    1.35      10.7 +/-    1.35  0.050 / 0.080
G20     105.9          29.1                7.6 +/-    0.85      13.6 +/-    0.85  0.100 / 0.270
G31     174.3          43.6               10.5 +/-    0.67      14.4 +/-    0.67  0.200 / 0.290
G32     5.9            67.9                6.8 +/-    0.80       7.3 +/-    0.80  0.030 / 0.020