PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-03:58:00
G08     306.9          19.9                7.6 +/-    1.37      16.7 +/-    1.37  0.140 / 0.170
G10     339.0          61.0                7.1 +/-    0.46       8.0 +/-    0.46  0.100 / 0.180
G14     220.3          31.3                8.3 +/-    2.11      14.1 +/-    2.11  0.040 / 0.050
G20     28.7           63.2               12.0 +/-    1.10      13.3 +/-    1.10  0.040 / 0.050
G21     137.7          54.5                8.5 +/-    0.38      10.2 +/-    0.38  0.120 / 0.190
G24     68.9           29.1                5.9 +/-    0.89      10.5 +/-    0.89  0.100 / 0.190
G27     270.2          36.7                8.7 +/-    1.90      13.4 +/-    1.90  0.070 / 0.090
G32     226.8          57.7                8.5 +/-    2.14       9.9 +/-    2.14  0.050 / 0.060