PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-22:27:30
G05     46.7           25.4               11.6 +/-    0.98      22.4 +/-    0.98  0.100 / 0.300
G13     84.2           37.3               14.6 +/-    0.58      22.2 +/-    0.58  0.120 / 0.280
G15     133.4          48.2               14.1 +/-    1.54      18.1 +/-    1.54  0.080 / 0.480
G18     240.8          37.5               11.0 +/-    0.94      16.7 +/-    0.94  0.100 / 0.490
G20     24.6           70.4               10.6 +/-    0.47      11.2 +/-    0.47  0.040 / 0.100
G21     308.3          44.2               11.4 +/-    1.10      15.5 +/-    1.10  0.050 / 0.090
G25     198.5          12.3               12.8 +/-    1.58      34.0 +/-    1.58  0.030 / 0.040
G26     295.0          19.7               11.2 +/-    2.18      24.9 +/-    2.18  0.030 / 0.030
G29     149.3          75.0               13.4 +/-    0.90      13.9 +/-    0.90  0.060 / 0.150