PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/31-03:43:00
G08     264.1          17.0               10.5 +/-    2.22      24.8 +/-    2.22  0.210 / 0.270
G10     66.4           57.1                5.4 +/-    0.36       6.3 +/-    0.36  0.230 / 0.400
G11     309.3          19.2                7.2 +/-    1.27      16.2 +/-    1.27  0.040 / 0.060
G14     270.4          66.2                7.2 +/-    1.20       7.8 +/-    1.20  0.050 / 0.060
G18     310.9          34.0                6.7 +/-    1.66      10.9 +/-    1.66  0.130 / 0.290
G20     82.3           55.9                8.1 +/-    0.77       9.6 +/-    0.77  0.120 / 0.240
G21     155.4          13.6                7.4 +/-    3.98      19.0 +/-    3.98  0.030 / 0.030
G27     229.9          14.1               12.0 +/-    4.93      30.5 +/-    4.93  0.040 / 0.030
G31     176.0          35.1                9.1 +/-    1.55      14.4 +/-    1.55  0.130 / 0.380
G32     354.1          72.0                7.2 +/-    0.35       7.5 +/-    0.35  0.090 / 0.430