PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/15-02:28:10
G08     295.4          23.3                5.7 +/-    1.86      11.6 +/-    1.86  0.040 / 0.070
G10     356.9          62.7                6.1 +/-    0.64       6.7 +/-    0.64  0.040 / 0.070
G14     227.1          44.9                9.9 +/-    1.76      13.4 +/-    1.76  0.050 / 0.090
G18     57.0           54.0                6.6 +/-    0.68       8.0 +/-    0.68  0.050 / 0.100
G21     143.9          43.7                9.7 +/-    1.96      13.3 +/-    1.96  0.030 / 0.030
G24     61.0           28.1                5.6 +/-    0.84      10.2 +/-    0.84  0.030 / 0.040
G27     256.6          33.2                7.8 +/-    1.65      12.9 +/-    1.65  0.070 / 0.090
G32     238.8          63.1               10.1 +/-    0.73      11.2 +/-    0.73  0.060 / 0.100