PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-05:27:50
G08     269.5          18.7                8.2 +/-    1.16      18.6 +/-    1.16  0.100 / 0.250
G10     58.3           59.0                6.2 +/-    0.44       7.2 +/-    0.44  0.120 / 0.270
G14     260.0          62.5                7.1 +/-    1.17       7.9 +/-    1.17  0.170 / 0.340
G18     313.3          30.1                8.6 +/-    2.71      15.0 +/-    2.71  0.150 / 0.300
G20     89.9           43.9                8.3 +/-    0.50      11.3 +/-    0.50  0.050 / 0.060
G21     154.7          17.6                5.0 +/-    3.02      11.6 +/-    3.02  0.040 / 0.070
G24     39.9           10.3                5.3 +/-    2.39      14.7 +/-    2.39  0.090 / 0.290
G27     233.0          16.9                6.8 +/-    2.70      16.1 +/-    2.70  0.100 / 0.230
G31     177.0          30.6                8.4 +/-    1.19      14.5 +/-    1.19  0.030 / 0.030
G32     340.9          74.5                7.3 +/-    0.56       7.5 +/-    0.56  0.030 / 0.030