PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-00:28:00
G08     292.9          23.4                9.2 +/-    1.37      18.7 +/-    1.37  0.050 / 0.100
G10     2.8            63.0                7.5 +/-    0.75       8.3 +/-    0.75  0.050 / 0.100
G14     229.4          47.1               12.8 +/-    0.81      16.8 +/-    0.81  0.040 / 0.040
G18     61.6           52.0                9.6 +/-    0.92      11.8 +/-    0.92  0.030 / 0.040
G21     145.3          40.1               12.5 +/-    1.10      18.1 +/-    1.10  0.100 / 0.110
G24     58.4           27.1                9.1 +/-    0.88      17.0 +/-    0.88  0.100 / 0.090
G27     253.7          32.0               11.3 +/-    2.17      19.0 +/-    2.17  0.030 / 0.040
G32     242.4          64.1               11.6 +/-    0.55      12.8 +/-    0.55  0.030 / 0.040