PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/04-03:12:50
G08     269.8          19.5                8.9 +/-    2.23      19.8 +/-    2.23  0.150 / 0.380
G10     54.8           59.6                6.4 +/-    0.91       7.3 +/-    0.91  0.110 / 0.420
G14     257.7          62.5                9.2 +/-    0.91      10.3 +/-    0.91  0.050 / 0.060
G18     314.0          28.9                9.2 +/-    3.01      16.5 +/-    3.01  0.050 / 0.050
G20     68.3           61.2               18.1 +/-    0.30      20.3 +/-    0.30  0.150 / 0.270
G21     154.4          19.6                7.8 +/-    2.80      17.3 +/-    2.80  0.150 / 0.300
G24     40.5           11.3                5.2 +/-    1.95      14.0 +/-    1.95  0.030 / 0.030
G27     234.6          18.3               10.1 +/-    1.15      23.2 +/-    1.15  0.030 / 0.030
G31     177.4          28.6               10.0 +/-    1.58      18.0 +/-    1.58  0.100 / 0.330
G32     334.0          75.4                8.2 +/-    0.59       8.4 +/-    0.59  0.100 / 0.360