PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-13:42:40
G02     203.0          32.5               10.0 +/-    0.92      16.7 +/-    0.92  0.110 / 0.300
G03     60.2           9.7                 7.9 +/-    2.08      22.2 +/-    2.08  0.150 / 0.240
G06     164.5          66.9                9.8 +/-    0.30      10.5 +/-    0.30  0.070 / 0.100
G12     307.0          13.9                6.8 +/-    1.66      17.3 +/-    1.66  0.070 / 0.080
G17     37.4           48.1                7.7 +/-    1.77      10.0 +/-    1.77  0.130 / 0.200
G19     3.7            65.0                7.5 +/-    1.23       8.1 +/-    1.23  0.140 / 0.230
G24     301.0          36.3                7.3 +/-    1.19      11.3 +/-    1.19  0.030 / 0.040
G28     101.9          31.5                9.1 +/-    1.35      15.5 +/-    1.35  0.030 / 0.040