PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-13:43:00
G02     60.1           32.5                3.4 +/-    0.59       5.6 +/-    0.59  0.060 / 0.070
G05     58.3           62.7                4.1 +/-    0.52       4.6 +/-    0.52  0.050 / 0.070
G12     184.1          31.0                5.6 +/-    0.70       9.6 +/-    0.70  0.030 / 0.040
G13     126.5          16.1                8.6 +/-    1.83      20.9 +/-    1.83  0.030 / 0.040
G15     164.8          12.3                6.1 +/-    1.68      16.3 +/-    1.68  0.060 / 0.130
G21     273.4          19.8                3.6 +/-    1.64       8.1 +/-    1.64  0.050 / 0.110
G25     226.7          49.7                6.1 +/-    1.28       7.7 +/-    1.28  0.120 / 0.270
G29     330.2          56.6                1.4 +/-    1.17       1.7 +/-    1.17  0.160 / 0.270