PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-15:12:50
G02     240.3          75.3               10.0 +/-    0.93      10.3 +/-    0.93  0.050 / 0.070
G05     174.6          13.8               15.2 +/-    1.08      39.0 +/-    1.08  0.040 / 0.060
G06     40.6           59.8                8.8 +/-    0.39      10.0 +/-    0.39  0.080 / 0.110
G12     321.5          51.6                9.5 +/-    1.69      11.7 +/-    1.69  0.080 / 0.100
G17     72.7           20.0               10.2 +/-    0.93      22.3 +/-    0.93  0.100 / 0.350
G19     59.1           36.9                8.1 +/-    0.64      12.5 +/-    0.64  0.150 / 0.350
G24     247.1          35.0               10.3 +/-    0.74      16.4 +/-    0.74  0.080 / 0.260
G25     316.9          15.0                6.5 +/-    2.60      16.1 +/-    2.60  0.080 / 0.240