PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-00:42:30
G02     33.2           55.0                9.9 +/-    0.43      11.7 +/-    0.43  0.040 / 0.050
G05     137.2          62.1               12.2 +/-    0.70      13.6 +/-    0.70  0.040 / 0.050
G06     52.5           17.9                7.8 +/-    0.48      18.0 +/-    0.48  0.040 / 0.050
G12     205.7          70.4               11.2 +/-    0.73      11.8 +/-    0.73  0.040 / 0.060
G25     297.2          53.5                9.7 +/-    0.48      11.7 +/-    0.48  0.020 / 0.030
G29     308.6          30.6                9.6 +/-    0.78      16.5 +/-    0.78  0.020 / 0.030