PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-03:57:50
G08     268.5          18.8                9.0 +/-    2.45      20.4 +/-    2.45  0.110 / 0.200
G10     58.4           58.9                7.2 +/-    0.68       8.3 +/-    0.68  0.200 / 0.150
G14     260.9          63.4                7.5 +/-    1.33       8.3 +/-    1.33  0.100 / 0.250
G18     313.2          30.3                5.9 +/-    1.00      10.3 +/-    1.00  0.100 / 0.220
G20     79.3           55.4                9.4 +/-    1.44      11.2 +/-    1.44  0.040 / 0.040
G21     154.7          17.8                6.1 +/-    1.13      14.1 +/-    1.13  0.040 / 0.050
G24     39.8           10.0                5.6 +/-    2.62      15.5 +/-    2.62  0.110 / 0.300
G27     233.1          17.0               10.5 +/-    1.98      24.9 +/-    1.98  0.060 / 0.350
G31     177.0          30.5                8.5 +/-    1.23      14.7 +/-    1.23  0.110 / 0.220
G32     340.9          74.5                7.2 +/-    0.35       7.4 +/-    0.35  0.070 / 0.170