PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-06:27:50
G08     316.3          14.4                4.3 +/-    1.45      10.7 +/-    1.45  0.100 / 0.260
G10     320.1          57.8                4.4 +/-    0.91       5.1 +/-    0.91  0.090 / 0.220
G14     215.6          20.6                7.2 +/-    1.85      15.7 +/-    1.85  0.060 / 0.080
G15     45.9           16.1                2.5 +/-    1.40       5.9 +/-    1.40  0.050 / 0.090
G20     52.0           52.2                5.7 +/-    0.72       7.1 +/-    0.72  0.040 / 0.050
G21     126.7          63.5                6.7 +/-    0.33       7.4 +/-    0.33  0.040 / 0.050
G24     81.0           29.8                5.7 +/-    0.66      10.0 +/-    0.66  0.040 / 0.030
G27     282.8          37.8                6.7 +/-    1.05      10.1 +/-    1.05  0.040 / 0.030
G32     218.2          47.9               10.4 +/-    1.40      13.5 +/-    1.40  0.060 / 0.110