PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-00:42:40
G07     26.9           69.1                7.7 +/-    0.59       8.2 +/-    0.59  0.130 / 0.090
G08     59.4           46.8                7.1 +/-    1.22       9.3 +/-    1.22  0.150 / 0.090
G09     180.2          46.1               10.7 +/-    1.68      14.2 +/-    1.68  0.110 / 0.250
G11     128.7          29.4               11.3 +/-    1.29      20.0 +/-    1.29  0.110 / 0.230
G23     160.2          15.0                8.6 +/-    1.23      21.4 +/-    1.23  0.040 / 0.050
G27     38.7           13.1                4.2 +/-    2.47      10.9 +/-    2.47  0.040 / 0.050
G28     265.0          48.7                6.7 +/-    4.51       8.6 +/-    4.51  0.030 / 0.030
G30     328.5          56.8                5.5 +/-    0.55       6.5 +/-    0.55  0.030 / 0.030