PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/04-03:27:50
G08     263.3          16.8               12.4 +/-    3.78      29.5 +/-    3.78  0.330 / 0.420
G10     67.5           56.8                5.7 +/-    0.46       6.6 +/-    0.46  0.340 / 0.570
G11     308.8          19.6                8.6 +/-    1.39      19.2 +/-    1.39  0.050 / 0.060
G14     272.1          66.6                7.9 +/-    0.96       8.5 +/-    0.96  0.040 / 0.050
G18     310.4          34.6                8.2 +/-    1.75      13.0 +/-    1.75  0.120 / 0.300
G20     80.8           57.6               16.3 +/-    0.56      18.9 +/-    0.56  0.120 / 0.320
G21     155.5          13.1                5.7 +/-    2.40      14.7 +/-    2.40  0.030 / 0.040
G27     229.5          13.7                9.7 +/-   16.02      24.9 +/-   16.02  0.030 / 0.040
G31     175.9          35.7                9.7 +/-    0.85      15.1 +/-    0.85  0.080 / 0.450
G32     355.8          71.6                7.2 +/-    0.35       7.6 +/-    0.35  0.090 / 0.460