PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-14:13:10
G02     17.7           67.6                5.5 +/-    0.64       5.9 +/-    0.64  0.040 / 0.060
G05     159.5          46.1               10.3 +/-    0.49      13.7 +/-    0.49  0.030 / 0.040
G06     45.7           30.6                4.9 +/-    0.97       8.5 +/-    0.97  0.210 / 0.530
G12     259.8          79.1                6.6 +/-    1.42       6.7 +/-    1.42  0.220 / 0.540
G19     88.4           17.6                7.9 +/-    0.94      18.4 +/-    0.94  0.040 / 0.060
G20     198.1          11.1               -1.0 +/-   22.07      -2.7 +/-   22.07  0.030 / 0.060
G24     219.7          13.6                8.1 +/-    2.78      20.9 +/-    2.78  0.130 / 0.410
G25     311.7          43.0                6.6 +/-    1.41       9.2 +/-    1.41  0.130 / 0.470
G29     299.1          22.5                5.1 +/-    1.28      10.6 +/-    1.28  0.040 / 0.080