PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-02:28:00
G10     99.9           44.6                6.1 +/-    0.62       8.3 +/-    0.62  0.030 / 0.040
G11     286.0          29.0                5.4 +/-    1.81       9.6 +/-    1.81  0.030 / 0.040
G14     348.9          68.7                4.4 +/-    0.91       4.7 +/-    0.91  0.090 / 0.210
G18     113.6          18.6                6.8 +/-    1.27      15.5 +/-    1.27  0.070 / 0.200
G22     307.4          21.3                5.9 +/-    4.01      12.5 +/-    4.01  0.060 / 0.140
G25     84.1           14.6                5.2 +/-    0.73      13.0 +/-    0.73  0.070 / 0.140
G31     173.5          57.6                8.3 +/-    1.47       9.7 +/-    1.47  0.040 / 0.060
G32     26.6           58.2                4.5 +/-    0.73       5.2 +/-    0.73  0.040 / 0.060