PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/11-22:58:00
G08     283.4          23.0               12.1 +/-    0.90      24.9 +/-    0.90  0.090 / 0.140
G10     23.8           63.1                9.5 +/-    1.04      10.5 +/-    1.04  0.070 / 0.120
G14     239.1          54.9               12.8 +/-    0.72      15.3 +/-    0.72  0.060 / 0.180
G18     73.9           46.4               10.1 +/-    0.77      13.4 +/-    0.77  0.050 / 0.170
G21     149.3          29.8               12.5 +/-    1.59      21.9 +/-    1.59  0.090 / 0.150
G24     50.3           22.6                8.9 +/-    1.12      18.3 +/-    1.12  0.090 / 0.140
G27     244.5          26.7               15.3 +/-    2.71      28.7 +/-    2.71  0.210 / 0.290
G31     184.1          11.0                7.9 +/-   35.20      21.4 +/-   35.20  0.170 / 0.320
G32     262.0          70.5               10.9 +/-    0.54      11.5 +/-    0.54  0.020 / 0.030