PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-19:28:10
G05     47.0           23.9               14.4 +/-    1.05      28.8 +/-    1.05  0.150 / 0.410
G13     83.6           37.3               17.8 +/-    0.56      27.1 +/-    0.56  0.110 / 0.420
G15     130.4          49.0               17.9 +/-    1.58      22.8 +/-    1.58  0.080 / 0.210
G18     241.5          39.0               17.6 +/-    2.26      26.0 +/-    2.26  0.080 / 0.200
G20     22.9           71.0               16.1 +/-    0.76      16.9 +/-    0.76  0.050 / 0.080
G21     310.0          45.7               14.4 +/-    1.27      19.3 +/-    1.27  0.040 / 0.100
G25     199.8          13.0               17.7 +/-    2.68      46.2 +/-    2.68  0.040 / 0.130
G26     296.3          18.9               13.6 +/-    1.19      30.8 +/-    1.19  0.050 / 0.110
G29     148.4          72.2               18.3 +/-    0.55      19.1 +/-    0.55  0.050 / 0.040