PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-23:57:50
G10     245.8          22.5               15.2 +/-    1.31      31.4 +/-    1.31  0.120 / 0.450
G13     59.3           32.8                9.3 +/-    0.63      15.5 +/-    0.63  0.130 / 0.650
G15     103.6          58.5               12.0 +/-    0.22      13.8 +/-    0.22  0.090 / 0.250
G16     300.1          16.0                8.3 +/-    2.54      20.2 +/-    2.54  0.110 / 0.220
G20     253.8          28.7               10.2 +/-    0.69      18.3 +/-    0.69  0.040 / 0.060
G21     325.8          55.4                9.9 +/-    0.59      11.8 +/-    0.59  0.050 / 0.060
G26     271.9          17.9               10.5 +/-    1.07      24.4 +/-    1.07  0.030 / 0.040
G29     163.5          57.9               11.7 +/-    1.15      13.6 +/-    1.15  0.030 / 0.050