PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/23-18:58:10
G08     312.1          17.6               12.0 +/-    0.92      28.0 +/-    0.92  0.080 / 0.060
G10     324.0          58.5               11.5 +/-    0.58      13.3 +/-    0.58  0.050 / 0.060
G14     216.4          28.1               12.9 +/-    1.49      23.5 +/-    1.49  0.030 / 0.040
G15     46.2           12.6               10.7 +/-    1.81      28.1 +/-    1.81  0.030 / 0.040
G18     35.1           60.1               11.5 +/-    0.66      13.0 +/-    0.66  0.060 / 0.090
G21     130.7          55.8               14.5 +/-    0.42      17.1 +/-    0.42  0.070 / 0.090
G24     79.5           30.5               12.3 +/-    1.19      21.3 +/-    1.19  0.110 / 0.090
G27     277.8          38.0               12.3 +/-    2.72      18.5 +/-    2.72  0.080 / 0.080
G32     220.7          47.2               14.2 +/-    2.14      18.6 +/-    2.14  0.160 / 0.170