PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-06:12:40
G08     319.6          11.7                3.6 +/-    5.54       9.6 +/-    5.54  0.170 / 0.270
G10     311.6          55.9                4.6 +/-    0.69       5.5 +/-    0.69  0.130 / 0.200
G14     213.8          16.1                9.0 +/-    2.85      21.7 +/-    2.85  0.030 / 0.040
G15     45.6           20.3                2.4 +/-    0.75       5.3 +/-    0.75  0.030 / 0.050
G20     44.4           55.4                5.7 +/-    0.36       6.7 +/-    0.36  0.060 / 0.080
G21     118.8          67.9                6.8 +/-    1.20       7.3 +/-    1.20  0.050 / 0.090
G24     86.7           29.1                5.1 +/-    0.41       9.1 +/-    0.41  0.040 / 0.040
G27     289.1          37.2                5.6 +/-    1.33       8.5 +/-    1.33  0.030 / 0.040
G32     215.0          43.0                8.4 +/-    1.35      11.7 +/-    1.35  0.170 / 0.300