PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-17:57:50
G05     50.1           15.4               12.0 +/-    0.71      29.4 +/-    0.71  0.110 / 0.320
G10     239.0          14.7               15.0 +/-    1.60      37.5 +/-    1.60  0.120 / 0.240
G13     71.9           36.9               12.5 +/-    0.54      19.1 +/-    0.54  0.040 / 0.050
G15     115.7          54.5               14.2 +/-    0.52      17.0 +/-    0.52  0.040 / 0.050
G16     315.2          10.7                4.7 +/-   23.88      13.0 +/-   23.88  0.090 / 0.200
G18     250.2          46.4               13.4 +/-    1.17      17.8 +/-    1.17  0.090 / 0.190
G20     30.1           63.4               12.7 +/-    0.68      14.0 +/-    0.68  0.050 / 0.070
G21     319.8          52.2               13.7 +/-    1.29      16.9 +/-    1.29  0.030 / 0.080
G26     287.8          18.6               12.1 +/-    1.50      27.6 +/-    1.50  0.060 / 0.120
G29     155.0          60.7               16.5 +/-    0.78      18.7 +/-    0.78  0.050 / 0.140