PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/18-00:58:00
G08     305.3          21.1                8.3 +/-    1.79      17.7 +/-    1.79  0.080 / 0.070
G10     339.3          61.0                8.8 +/-    0.69       9.9 +/-    0.69  0.060 / 0.070
G14     220.1          33.0               12.1 +/-    1.49      20.0 +/-    1.49  0.030 / 0.040
G15     47.6           10.7                6.9 +/-    1.70      18.9 +/-    1.70  0.030 / 0.040
G20     328.3          59.9               25.3 +/-    0.98      28.7 +/-    0.98  0.050 / 0.090
G21     137.7          54.8               11.4 +/-    0.57      13.6 +/-    0.57  0.080 / 0.070
G24     68.2           28.8                9.4 +/-    1.36      16.9 +/-    1.36  0.140 / 0.130
G27     270.6          36.7                9.6 +/-    1.69      14.7 +/-    1.69  0.170 / 0.110
G32     226.7          57.7               11.4 +/-    2.33      13.2 +/-    2.33  0.130 / 0.270