PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/24-17:12:30
G02     321.0          79.7                6.8 +/-    0.32       6.9 +/-    0.32  0.070 / 0.070
G05     165.5          31.9                9.6 +/-    2.11      16.2 +/-    2.11  0.050 / 0.070
G06     41.9           39.0                7.1 +/-    1.78      10.6 +/-    1.78  0.100 / 0.260
G12     310.8          75.6                7.5 +/-    0.68       7.7 +/-    0.68  0.170 / 0.230
G17     85.9           10.5                9.2 +/-    2.46      25.5 +/-    2.46  0.040 / 0.030
G19     71.8           31.0                9.4 +/-    1.65      16.1 +/-    1.65  0.030 / 0.020
G24     227.4          23.0               10.3 +/-    2.50      21.1 +/-    2.50  0.130 / 0.140
G25     317.3          28.8                8.0 +/-    1.68      14.4 +/-    1.68  0.120 / 0.150