PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-13:28:00
G02     253.3          76.6                5.1 +/-    0.42       5.2 +/-    0.42  0.120 / 0.370
G05     173.1          17.7                7.3 +/-    1.09      17.0 +/-    1.09  0.270 / 0.200
G06     39.9           53.0                5.0 +/-    0.64       6.1 +/-    0.64  0.110 / 0.120
G12     321.6          59.0                4.2 +/-    1.33       4.8 +/-    1.33  0.100 / 0.110
G17     75.7           17.7                4.5 +/-    1.75      10.4 +/-    1.75  0.030 / 0.040
G19     58.9           38.9                5.4 +/-    1.28       8.0 +/-    1.28  0.040 / 0.030
G24     236.7          31.4                7.6 +/-    1.59      12.9 +/-    1.59  0.050 / 0.030
G25     317.2          19.4                2.0 +/-    1.15       4.5 +/-    1.15  0.030 / 0.030