PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/24-15:13:10
G02     229.3          70.5               11.7 +/-    1.02      12.3 +/-    1.02  0.050 / 0.090
G06     42.8           64.9                9.7 +/-    0.27      10.6 +/-    0.27  0.060 / 0.090
G12     321.2          46.6                9.0 +/-    1.21      11.9 +/-    1.21  0.050 / 0.060
G17     68.6           23.1                9.3 +/-    0.87      19.0 +/-    0.87  0.040 / 0.060
G19     54.0           40.1                9.9 +/-    0.54      14.4 +/-    0.54  0.120 / 0.380
G24     252.9          37.6               11.2 +/-    0.84      17.0 +/-    0.84  0.170 / 0.430
G25     315.9          10.7              -14.5 +/-   28.89     -40.0 +/-   28.89  0.030 / 0.030