PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-17:43:10
G10     255.7          30.0               11.5 +/-    2.99      20.2 +/-    2.99  0.260 / 0.160
G13     49.5           27.6                8.4 +/-    1.53      15.4 +/-    1.53  0.380 / 0.250
G15     73.8           54.7               10.7 +/-    0.43      12.8 +/-    0.43  0.030 / 0.030
G16     295.8          13.0                4.3 +/-    1.27      11.3 +/-    1.27  0.050 / 0.040
G18     280.5          60.5               11.1 +/-    0.93      12.5 +/-    0.93  0.040 / 0.060
G20     45.8           45.0                9.4 +/-    0.72      12.7 +/-    0.72  0.040 / 0.070
G21     349.0          66.8               10.9 +/-    0.60      11.7 +/-    0.60  0.160 / 0.260
G26     266.2          12.9               10.2 +/-    2.17      26.7 +/-    2.17  0.150 / 0.260
G27     321.8          11.1              -10.0 +/-   23.93     -27.3 +/-   23.93  0.080 / 0.250
G29     163.6          37.5               12.8 +/-    0.53      19.3 +/-    0.53  0.100 / 0.230