PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-21:27:20
G02     17.4           66.8                8.3 +/-    0.54       8.9 +/-    0.54  0.030 / 0.030
G05     154.3          50.0               10.0 +/-    0.69      12.6 +/-    0.69  0.020 / 0.020
G06     47.7           24.8                8.3 +/-    2.89      16.2 +/-    2.89  0.030 / 0.050
G12     224.8          79.2                9.1 +/-    1.04       9.3 +/-    1.04  0.030 / 0.040
G19     88.2           19.8               10.0 +/-    1.63      22.0 +/-    1.63  0.250 / 0.320
G24     216.1          11.4               10.2 +/-    2.87      27.5 +/-    2.87  0.390 / 0.600
G25     310.9          43.4                9.2 +/-    0.78      12.7 +/-    0.78  0.120 / 0.130
G29     297.4          17.7               10.5 +/-    2.44      24.4 +/-    2.44  0.060 / 0.160