PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/05-19:27:40
G02     25.9           60.9                9.1 +/-    0.73      10.3 +/-    0.73  0.030 / 0.040
G05     146.7          57.9               11.7 +/-    0.73      13.5 +/-    0.73  0.030 / 0.040
G06     51.9           17.6                8.0 +/-    2.36      18.7 +/-    2.36  0.040 / 0.050
G12     195.1          70.2               11.5 +/-    0.62      12.1 +/-    0.62  0.060 / 0.060
G19     95.1           15.3               10.2 +/-    1.62      25.2 +/-    1.62  0.030 / 0.030
G25     302.6          50.9               10.1 +/-    2.58      12.6 +/-    2.58  0.030 / 0.030
G29     303.4          23.4                9.1 +/-    1.19      18.6 +/-    1.19  0.170 / 0.220