PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-16:13:10
G02     228.1          69.2               12.4 +/-    1.17      13.1 +/-    1.17  0.050 / 0.060
G06     43.2           64.9               13.5 +/-    0.48      14.8 +/-    0.48  0.070 / 0.050
G12     321.3          46.4               11.8 +/-    1.12      15.5 +/-    1.12  0.050 / 0.090
G17     68.2           23.3               12.5 +/-    0.80      25.4 +/-    0.80  0.050 / 0.090
G19     53.5           40.4               13.3 +/-    0.50      19.3 +/-    0.50  0.210 / 0.460
G24     253.7          37.9               12.3 +/-    0.74      18.5 +/-    0.74  0.070 / 0.150
G25     315.8          10.8              -13.9 +/-   29.79     -38.2 +/-   29.79  0.070 / 0.110