PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/12-05:58:00
G08     296.5          22.1                6.5 +/-    1.17      13.7 +/-    1.17  0.070 / 0.100
G10     3.8            62.9                3.6 +/-    0.35       4.0 +/-    0.35  0.080 / 0.130
G14     228.2          41.2               10.3 +/-    1.90      14.7 +/-    1.90  0.040 / 0.090
G20     68.7           48.6                4.8 +/-    0.66       6.2 +/-    0.66  0.040 / 0.080
G21     145.8          42.6                9.1 +/-    0.86      12.7 +/-    0.86  0.050 / 0.110
G24     57.0           25.8                5.7 +/-    0.42      10.9 +/-    0.42  0.060 / 0.100
G27     255.9          32.4                7.6 +/-    0.91      12.6 +/-    0.91  0.030 / 0.030
G32     244.5          68.4                8.0 +/-    0.72       8.5 +/-    0.72  0.030 / 0.030