PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-09:12:50
G08     277.8          20.0                6.8 +/-    1.97      14.9 +/-    1.97  0.040 / 0.070
G10     46.8           61.0                3.5 +/-    0.32       4.0 +/-    0.32  0.040 / 0.070
G14     249.6          57.2                8.0 +/-    0.73       9.3 +/-    0.73  0.090 / 0.410
G18     315.6          24.7                3.9 +/-    2.39       7.6 +/-    2.39  0.090 / 0.440
G20     99.3           17.4                4.5 +/-    1.76      10.6 +/-    1.76  0.060 / 0.140
G21     153.3          22.4                7.8 +/-    2.90      16.1 +/-    2.90  0.080 / 0.110
G24     42.9           15.0                1.6 +/-    1.56       4.0 +/-    1.56  0.100 / 0.250
G27     236.9          20.5                8.1 +/-    1.12      17.5 +/-    1.12  0.120 / 0.200
G31     178.3          24.8                8.1 +/-    1.84      15.9 +/-    1.84  0.120 / 0.210
G32     317.5          76.5                5.7 +/-    0.97       5.8 +/-    0.97  0.110 / 0.170