PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-01:28:10
G01     312.8          27.9                9.8 +/-    1.38      17.9 +/-    1.38  0.130 / 0.140
G10     96.8           46.4                9.8 +/-    0.61      13.0 +/-    0.61  0.110 / 0.160
G11     289.2          28.5                9.4 +/-    0.85      16.9 +/-    0.85  0.090 / 0.170
G14     341.5          69.7               10.1 +/-    0.63      10.7 +/-    0.63  0.110 / 0.160
G18     111.8          20.2               10.1 +/-    1.34      22.0 +/-    1.34  0.030 / 0.040
G22     306.3          19.1                9.4 +/-    1.03      21.2 +/-    1.03  0.030 / 0.040
G25     87.1           13.8                8.6 +/-    1.02      22.0 +/-    1.02  0.040 / 0.050
G31     175.4          54.0               12.7 +/-    1.85      15.3 +/-    1.85  0.040 / 0.040
G32     22.1           60.5                7.6 +/-    0.42       8.6 +/-    0.42  0.040 / 0.050