PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-22:43:10
G10     282.0          45.3               11.7 +/-    0.84      15.7 +/-    0.84  0.100 / 0.140
G15     49.5           38.4                9.3 +/-    0.64      13.9 +/-    0.64  0.120 / 0.150
G18     331.7          66.9               10.4 +/-    0.78      11.2 +/-    0.78  0.110 / 0.310
G20     64.0           24.8                9.9 +/-    1.58      19.4 +/-    1.58  0.140 / 0.350
G21     56.0           76.8               10.8 +/-    0.62      11.1 +/-    0.62  0.090 / 0.120
G24     110.0          21.4               13.3 +/-    0.80      28.3 +/-    0.80  0.090 / 0.130
G27     309.3          29.6               10.9 +/-    1.75      19.2 +/-    1.75  0.050 / 0.050
G29     167.0          14.3               15.7 +/-    1.37      39.7 +/-    1.37  0.040 / 0.060
G32     207.8          19.2               16.3 +/-    2.36      36.5 +/-    2.36  0.050 / 0.040