PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/23-20:28:10
G05     50.4           15.8               11.9 +/-    1.58      29.1 +/-    1.58  0.100 / 0.170
G10     240.1          15.9               17.4 +/-    1.05      42.4 +/-    1.05  0.150 / 0.250
G13     70.1           36.7               15.5 +/-    0.56      23.8 +/-    0.56  0.100 / 0.190
G15     114.5          55.3               17.1 +/-    0.73      20.3 +/-    0.73  0.110 / 0.190
G16     312.2          12.1               11.5 +/-    9.27      30.7 +/-    9.27  0.040 / 0.060
G18     251.6          46.8               15.8 +/-    4.49      20.8 +/-    4.49  0.060 / 0.060
G20     32.9           60.7               15.5 +/-    0.64      17.5 +/-    0.64  0.050 / 0.030
G21     319.9          52.1               14.0 +/-    0.71      17.3 +/-    0.71  0.040 / 0.040
G26     285.4          18.7               14.3 +/-    1.62      32.5 +/-    1.62  0.090 / 0.270
G29     157.2          60.9               16.6 +/-    0.45      18.7 +/-    0.45  0.150 / 0.240