PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-19:27:30
G02     350.9          76.5                8.4 +/-    0.40       8.6 +/-    0.40  0.040 / 0.050
G05     162.4          37.9               10.7 +/-    1.06      16.2 +/-    1.06  0.040 / 0.060
G06     43.4           34.4                8.8 +/-    1.24      14.1 +/-    1.24  0.210 / 0.430
G12     294.8          79.0                6.3 +/-    1.46       6.4 +/-    1.46  0.420 / 0.480
G19     77.5           27.2                8.2 +/-    2.37      15.3 +/-    2.37  0.070 / 0.110
G24     223.7          19.2               10.2 +/-    3.48      22.9 +/-    3.48  0.100 / 0.090
G25     316.2          33.3                6.1 +/-    1.18      10.0 +/-    1.18  0.030 / 0.030