PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-01:12:30
G08     300.3          22.4                8.5 +/-    1.34      17.7 +/-    1.34  0.040 / 0.090
G10     346.7          61.8                8.4 +/-    0.48       9.4 +/-    0.48  0.040 / 0.070
G14     223.4          40.4               13.1 +/-    0.74      18.9 +/-    0.74  0.050 / 0.080
G18     50.7           56.1                9.4 +/-    0.54      11.1 +/-    0.54  0.050 / 0.090
G21     140.8          48.1               13.2 +/-    0.93      17.0 +/-    0.93  0.030 / 0.040
G24     66.0           29.5                9.8 +/-    0.53      17.4 +/-    0.53  0.030 / 0.040
G27     262.2          35.3               12.1 +/-    1.57      19.1 +/-    1.57  0.030 / 0.030
G32     232.1          58.1               11.8 +/-    0.96      13.7 +/-    0.96  0.030 / 0.030