PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-14:58:10
G02     29.9           57.3                8.1 +/-    0.52       9.5 +/-    0.52  0.030 / 0.050
G05     147.1          59.6               10.6 +/-    0.66      12.1 +/-    0.66  0.050 / 0.040
G06     52.7           15.9                6.5 +/-    0.99      15.8 +/-    0.99  0.030 / 0.040
G12     197.4          69.4                9.2 +/-    0.95       9.7 +/-    0.95  0.020 / 0.050
G25     300.0          51.5                6.2 +/-    0.88       7.6 +/-    0.88  0.110 / 0.270
G29     305.5          26.1                7.8 +/-    1.35      14.9 +/-    1.35  0.120 / 0.280