PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-16:43:10
G10     246.9          22.7               14.7 +/-    1.66      30.2 +/-    1.66  0.050 / 0.050
G13     58.9           33.3               12.8 +/-    1.46      21.0 +/-    1.46  0.050 / 0.050
G15     93.5           57.1               14.9 +/-    0.81      17.4 +/-    0.81  0.190 / 0.280
G16     305.3          13.1               10.0 +/-    1.62      26.2 +/-    1.62  0.150 / 0.210
G18     264.0          54.6               13.3 +/-    1.87      15.9 +/-    1.87  0.050 / 0.040
G20     37.9           54.2               12.2 +/-    0.89      14.6 +/-    0.89  0.050 / 0.040
G21     334.1          60.3               12.1 +/-    0.62      13.7 +/-    0.62  0.040 / 0.100
G26     275.6          16.7               12.2 +/-    3.49      29.1 +/-    3.49  0.060 / 0.130
G29     160.7          49.4               16.2 +/-    0.68      20.6 +/-    0.68  0.190 / 0.410