PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/28-00:28:10
G05     51.0           14.2                9.5 +/-    2.13      24.2 +/-    2.13  0.080 / 0.250
G10     240.9          16.7               13.5 +/-    1.20      32.3 +/-    1.20  0.110 / 0.270
G13     68.2           36.3               11.7 +/-    1.32      18.2 +/-    1.32  0.280 / 0.350
G15     116.8          55.9               13.2 +/-    0.41      15.6 +/-    0.41  0.110 / 0.210
G16     309.2          13.5                7.7 +/-    1.27      19.8 +/-    1.27  0.040 / 0.050
G18     252.1          46.2               12.7 +/-    3.59      16.8 +/-    3.59  0.030 / 0.060
G20     35.1           58.3               11.2 +/-    0.85      12.9 +/-    0.85  0.080 / 0.170
G21     319.3          51.6               10.8 +/-    0.80      13.4 +/-    0.80  0.080 / 0.150
G26     281.8          19.1               11.4 +/-    0.89      25.6 +/-    0.89  0.030 / 0.030
G29     159.6          62.1               12.8 +/-    0.45      14.3 +/-    0.45  0.020 / 0.040