PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-04:28:00
G08     308.3          19.3                7.9 +/-    1.43      17.8 +/-    1.43  0.040 / 0.050
G10     336.5          60.6                5.8 +/-    0.69       6.6 +/-    0.69  0.040 / 0.060
G14     219.6          29.9                9.4 +/-    1.14      16.5 +/-    1.14  0.060 / 0.090
G20     35.9           61.3                6.4 +/-    0.67       7.2 +/-    0.67  0.060 / 0.090
G21     136.6          55.7                7.0 +/-    0.89       8.3 +/-    0.89  0.130 / 0.190
G24     70.4           29.4                5.6 +/-    0.42       9.9 +/-    0.42  0.080 / 0.180
G27     271.7          37.0                8.3 +/-    1.03      12.7 +/-    1.03  0.070 / 0.080
G32     225.5          56.6                9.2 +/-    0.58      10.7 +/-    0.58  0.060 / 0.100