PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-00:12:50
G08     271.0          20.2               10.4 +/-    2.40      22.8 +/-    2.40  0.030 / 0.030
G10     49.3           60.9               11.5 +/-    0.87      12.9 +/-    0.87  0.030 / 0.030
G11     314.0          14.9               10.5 +/-    1.86      26.2 +/-    1.86  0.100 / 0.280
G14     257.7          64.2               10.8 +/-    0.97      11.9 +/-    0.97  0.110 / 0.290
G18     86.5           39.7               11.9 +/-    0.52      17.4 +/-    0.52  0.110 / 0.390
G21     152.8          18.8               14.5 +/-    2.66      32.9 +/-    2.66  0.100 / 0.350
G24     42.7           15.2               12.2 +/-    1.34      30.3 +/-    1.34  0.040 / 0.070
G27     234.5          19.0               16.1 +/-    1.14      36.4 +/-    1.14  0.050 / 0.050
G31     181.2          22.7               15.7 +/-    2.21      32.3 +/-    2.21  0.090 / 0.110
G32     303.8          74.9               12.1 +/-    0.54      12.5 +/-    0.54  0.160 / 0.130