PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-09:28:10
G08     267.0          16.3                5.5 +/-    2.43      13.2 +/-    2.43  0.050 / 0.070
G10     67.9           56.9                3.3 +/-    0.61       3.8 +/-    0.61  0.040 / 0.060
G11     309.8          18.4                3.5 +/-    1.75       8.1 +/-    1.75  0.070 / 0.390
G14     269.1          64.5                3.7 +/-    0.72       4.1 +/-    0.72  0.130 / 0.340
G18     310.6          34.0                4.8 +/-    2.66       7.8 +/-    2.66  0.320 / 0.440
G20     107.1          11.2                3.3 +/-    2.52       8.9 +/-    2.52  0.220 / 0.420
G21     155.3          11.9                2.4 +/-    3.68       6.4 +/-    3.68  0.130 / 0.200
G27     228.6          13.2                1.0 +/-   22.72       2.7 +/-   22.72  0.120 / 0.210
G31     175.9          36.2                6.1 +/-    0.97       9.5 +/-    0.97  0.030 / 0.030
G32     356.4          71.3                4.4 +/-    0.49       4.7 +/-    0.49  0.030 / 0.030