PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-21:43:10
G02     34.9           53.9               10.8 +/-    0.38      13.0 +/-    0.38  0.050 / 0.040
G05     132.2          64.7               13.7 +/-    0.71      15.0 +/-    0.71  0.040 / 0.040
G06     56.0           12.2                7.4 +/-    1.70      19.8 +/-    1.70  0.050 / 0.040
G12     190.8          62.4               12.3 +/-    0.83      13.7 +/-    0.83  0.050 / 0.050
G19     101.6          10.0                9.0 +/-    1.42      25.1 +/-    1.42  0.050 / 0.060
G25     291.9          55.4               10.6 +/-    0.93      12.6 +/-    0.93  0.040 / 0.050
G29     308.9          29.1                9.8 +/-    1.51      17.6 +/-    1.51  0.040 / 0.070