PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-01:27:50
G08     281.6          22.9               10.4 +/-    1.15      21.3 +/-    1.15  0.030 / 0.020
G10     26.4           63.0                8.4 +/-    1.10       9.3 +/-    1.10  0.030 / 0.020
G14     240.9          56.4               11.6 +/-    2.56      13.6 +/-    2.56  0.100 / 0.250
G18     74.5           46.5               10.2 +/-    0.75      13.5 +/-    0.75  0.150 / 0.240
G21     150.0          29.9               10.8 +/-    1.50      19.0 +/-    1.50  0.060 / 0.110
G24     49.3           21.9               10.2 +/-    2.00      21.4 +/-    2.00  0.110 / 0.120
G27     243.3          25.9               14.2 +/-    1.55      27.1 +/-    1.55  0.130 / 0.160
G31     182.6          13.6               13.0 +/-    3.68      33.5 +/-    3.68  0.090 / 0.130
G32     267.3          72.1               10.1 +/-    1.03      10.6 +/-    1.03  0.120 / 0.200