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                9.8 +/-    0.70      11.6 +/-    0.70  0.050 / 0.050
G05     137.2          62.1               11.5 +/-    0.58      12.8 +/-    0.58  0.050 / 0.060
G06     52.5           17.9                9.3 +/-    2.49      21.4 +/-    2.49  0.030 / 0.030
G12     205.7          70.4               11.2 +/-    0.47      11.8 +/-    0.47  0.020 / 0.030
G25     297.2          53.5                9.7 +/-    1.69      11.8 +/-    1.69  0.130 / 0.210
G29     308.6          30.6                9.3 +/-    1.44      16.1 +/-    1.44  0.140 / 0.180