PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-01:27:50
G02     26.3           61.3               10.3 +/-    0.35      11.6 +/-    0.35  0.020 / 0.030
G05     148.0          55.3               12.9 +/-    0.99      15.3 +/-    0.99  0.030 / 0.040
G06     49.7           21.8                7.4 +/-    2.00      15.6 +/-    2.00  0.040 / 0.050
G12     216.1          76.0               11.2 +/-    1.37      11.5 +/-    1.37  0.030 / 0.050
G19     92.9           15.8               10.8 +/-    1.77      26.3 +/-    1.77  0.040 / 0.060
G25     307.4          46.7               10.3 +/-    1.30      13.6 +/-    1.30  0.050 / 0.090
G29     301.2          21.4                9.2 +/-    2.18      19.4 +/-    2.18  0.030 / 0.050