PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-19:28:10
G02     33.6           55.0               10.0 +/-    0.68      12.0 +/-    0.68  0.030 / 0.040
G05     134.1          64.5               12.2 +/-    0.71      13.4 +/-    0.71  0.030 / 0.030
G06     56.1           11.7                7.6 +/-    1.89      20.5 +/-    1.89  0.040 / 0.050
G12     188.4          61.3               12.8 +/-    1.18      14.4 +/-    1.18  0.050 / 0.050
G19     101.3          10.6                9.7 +/-    2.15      26.8 +/-    2.15  0.040 / 0.060
G25     291.3          55.9                8.6 +/-    0.91      10.2 +/-    0.91  0.040 / 0.060
G29     308.7          29.0                8.9 +/-    2.70      15.9 +/-    2.70  0.030 / 0.060