PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-11:12:40
G02     201.2          16.8                5.8 +/-    2.19      13.9 +/-    2.19  0.110 / 0.170
G06     170.4          53.0                8.5 +/-    0.36      10.3 +/-    0.36  0.120 / 0.210
G13     227.8          14.0                5.5 +/-    2.35      14.1 +/-    2.35  0.090 / 0.090
G17     23.2           59.2                5.5 +/-    0.56       6.2 +/-    0.56  0.090 / 0.120
G19     305.2          69.9                5.3 +/-    0.84       5.6 +/-    0.84  0.040 / 0.040
G24     309.1          31.3                5.6 +/-    1.58       9.6 +/-    1.58  0.050 / 0.030
G28     85.6           41.5                6.1 +/-    0.74       8.7 +/-    0.74  0.030 / 0.030
G30     157.6          17.3                7.1 +/-    1.91      16.7 +/-    1.91  0.030 / 0.030