PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-00:12:40
G01     297.2          38.3               14.4 +/-    0.91      21.5 +/-    0.91  0.090 / 0.090
G03     309.7          11.4                2.0 +/-   43.73       5.5 +/-   43.73  0.070 / 0.090
G10     115.2          33.6               13.1 +/-    0.74      21.4 +/-    0.74  0.060 / 0.110
G11     270.1          28.0               14.2 +/-    1.16      26.0 +/-    1.16  0.050 / 0.110
G14     17.9           61.2               11.0 +/-    0.58      12.4 +/-    0.58  0.070 / 0.130
G22     312.4          32.8               12.3 +/-    1.76      20.3 +/-    1.76  0.070 / 0.120
G25     70.6           18.1               10.1 +/-    0.78      23.3 +/-    0.78  0.030 / 0.030
G31     165.8          72.4               13.0 +/-    0.72      13.6 +/-    0.72  0.030 / 0.030
G32     43.5           47.9               10.3 +/-    0.88      13.3 +/-    0.88  0.030 / 0.080