PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-01:27:50
G08     264.9          17.8               11.4 +/-    1.70      26.4 +/-    1.70  0.130 / 0.300
G10     61.5           58.8                9.3 +/-    0.52      10.7 +/-    0.52  0.130 / 0.370
G11     309.8          19.2               10.4 +/-    2.07      23.4 +/-    2.07  0.040 / 0.020
G14     271.9          68.0                9.8 +/-    0.75      10.5 +/-    0.75  0.020 / 0.030
G18     92.5           36.1               10.3 +/-    0.66      16.1 +/-    0.66  0.100 / 0.160
G21     154.1          13.3               12.1 +/-    1.49      31.4 +/-    1.49  0.140 / 0.210
G24     39.9           10.8                7.8 +/-    1.91      21.5 +/-    1.91  0.030 / 0.040
G27     229.8          14.8               13.4 +/-    2.16      33.5 +/-    2.16  0.030 / 0.040
G31     179.6          29.6               15.1 +/-    1.39      26.7 +/-    1.39  0.150 / 0.490
G32     331.2          74.0               10.5 +/-    0.76      10.9 +/-    0.76  0.100 / 0.410