PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/26-01:42:40
G08     295.9          23.2                8.5 +/-    1.19      17.4 +/-    1.19  0.030 / 0.030
G10     355.9          62.6                8.1 +/-    0.92       9.1 +/-    0.92  0.030 / 0.030
G14     226.7          44.4               12.0 +/-    1.49      16.3 +/-    1.49  0.040 / 0.080
G18     56.8           54.0                9.2 +/-    0.54      11.1 +/-    0.54  0.040 / 0.070
G21     143.6          43.9               12.7 +/-    1.41      17.4 +/-    1.41  0.050 / 0.090
G24     61.4           28.2                8.3 +/-    0.76      15.2 +/-    0.76  0.050 / 0.110
G27     257.2          33.4               11.2 +/-    1.90      18.3 +/-    1.90  0.050 / 0.090
G32     237.9          62.2               11.8 +/-    0.51      13.2 +/-    0.51  0.050 / 0.110