PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-04:12:30
G02     34.1           54.3                4.4 +/-    1.11       5.3 +/-    1.11  0.020 / 0.030
G05     136.8          62.5                5.3 +/-    0.70       5.9 +/-    0.70  0.030 / 0.030
G06     52.1           19.9                3.7 +/-    2.78       8.2 +/-    2.78  0.050 / 0.040
G12     204.9          69.8                5.2 +/-    0.66       5.5 +/-    0.66  0.070 / 0.050
G19     99.8           9.7                 5.3 +/-    3.53      14.9 +/-    3.53  0.030 / 0.030
G25     294.7          55.1                3.6 +/-    3.74       4.3 +/-    3.74  0.030 / 0.030
G29     310.2          33.1                2.7 +/-    1.34       4.4 +/-    1.34  0.170 / 0.290