PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-00:27:50
G10     271.9          40.2               10.2 +/-    0.84      14.7 +/-    0.84  0.200 / 0.280
G13     40.5           16.1                9.3 +/-    2.11      22.6 +/-    2.11  0.210 / 0.270
G15     55.7           46.6                9.8 +/-    1.55      12.8 +/-    1.55  0.030 / 0.020
G18     309.5          65.3                6.6 +/-   20.60       7.2 +/-   20.60  0.040 / 0.030
G20     58.4           30.2                9.3 +/-    1.93      16.2 +/-    1.93  0.150 / 0.260
G21     17.3           74.7               11.1 +/-    8.24      11.5 +/-    8.24  0.140 / 0.240
G24     117.5          16.7               10.6 +/-    1.99      25.3 +/-    1.99  0.060 / 0.090
G27     315.2          23.9                9.3 +/-    3.28      18.6 +/-    3.28  0.090 / 0.090
G29     167.4          23.7               10.4 +/-    2.49      21.0 +/-    2.49  0.130 / 0.110
G32     205.6          12.4               11.0 +/-   14.72      29.0 +/-   14.72  0.110 / 0.130