PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/22-18:28:10
G10     261.6          35.2               10.6 +/-    1.48      16.8 +/-    1.48  0.150 / 0.570
G13     44.5           21.9               10.7 +/-    2.06      22.4 +/-    2.06  0.140 / 0.520
G15     69.3           55.3               10.2 +/-    0.68      12.1 +/-    0.68  0.130 / 0.250
G16     284.0          13.7                8.1 +/-    1.27      20.7 +/-    1.27  0.110 / 0.300
G20     288.1          57.8               10.2 +/-    1.78      11.9 +/-    1.78  0.320 / 0.250
G24     121.5          11.6               13.6 +/-    2.41      36.6 +/-    2.41  0.190 / 0.280
G27     321.3          13.3                7.3 +/-    2.91      18.9 +/-    2.91  0.350 / 0.220
G29     166.9          36.7               12.2 +/-    0.96      18.7 +/-    0.96  0.180 / 0.210