PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-07:27:30
G02     224.3          70.3                8.0 +/-    0.60       8.4 +/-    0.60  0.040 / 0.100
G06     46.1           71.6                5.9 +/-    1.10       6.2 +/-    1.10  0.050 / 0.110
G12     320.3          41.9                5.3 +/-    0.92       7.5 +/-    0.92  0.060 / 0.070
G17     64.2           27.5                2.8 +/-    1.43       5.1 +/-    1.43  0.060 / 0.060
G19     49.3           43.3                3.8 +/-    0.52       5.2 +/-    0.52  0.050 / 0.070
G24     256.5          39.0                9.1 +/-    0.92      13.4 +/-    0.92  0.060 / 0.060