PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-09:28:00
G02     204.4          35.4                5.9 +/-    1.00       9.3 +/-    1.00  0.070 / 0.060
G06     157.0          71.0                6.6 +/-    0.63       6.9 +/-    0.63  0.080 / 0.070
G12     308.7          17.4                4.1 +/-    2.57       9.6 +/-    2.57  0.030 / 0.020
G17     40.0           45.5                3.6 +/-    0.96       4.8 +/-    0.96  0.030 / 0.020
G19     358.4          65.3                3.8 +/-    0.52       4.1 +/-    0.52  0.230 / 0.210
G24     291.4          41.8                5.9 +/-    1.96       8.4 +/-    1.96  0.110 / 0.170
G28     103.6          31.3                5.9 +/-    1.10      10.0 +/-    1.10  0.030 / 0.020