PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/19-08:43:00
G08     266.9          16.5                6.5 +/-    2.53      15.6 +/-    2.53  0.180 / 0.320
G10     67.1           57.1                4.7 +/-    0.52       5.4 +/-    0.52  0.150 / 0.340
G11     310.0          18.3                3.9 +/-    1.73       8.9 +/-    1.73  0.040 / 0.050
G14     267.5          63.8                3.3 +/-    0.65       3.6 +/-    0.65  0.040 / 0.050
G18     310.8          33.7                2.9 +/-    0.94       4.7 +/-    0.94  0.270 / 0.260
G20     105.1          17.0                4.6 +/-    1.40      10.8 +/-    1.40  0.210 / 0.370
G21     155.3          12.5                2.5 +/-    4.31       6.7 +/-    4.31  0.150 / 0.550
G27     229.0          13.5                4.2 +/-    4.43      10.9 +/-    4.43  0.170 / 0.480
G31     175.9          35.8                4.2 +/-    1.73       6.6 +/-    1.73  0.140 / 0.190
G32     355.4          71.6                4.7 +/-    0.59       4.9 +/-    0.59  0.130 / 0.250