PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/18-21:57:40
G01     311.1          29.7                8.0 +/-    1.42      14.0 +/-    1.42  0.120 / 0.240
G10     100.0          44.4                9.9 +/-    0.64      13.4 +/-    0.64  0.140 / 0.260
G11     287.6          28.1                7.0 +/-    1.31      12.7 +/-    1.31  0.040 / 0.040
G14     346.2          68.9                8.1 +/-    0.80       8.7 +/-    0.80  0.040 / 0.040
G18     114.0          17.2               11.5 +/-    1.14      27.2 +/-    1.14  0.060 / 0.150
G22     307.4          20.9                8.2 +/-    4.14      17.6 +/-    4.14  0.060 / 0.160
G25     86.4           14.9               11.5 +/-    1.78      28.6 +/-    1.78  0.090 / 0.170
G31     175.0          56.6               11.8 +/-    1.01      13.9 +/-    1.01  0.080 / 0.150
G32     27.8           57.6                7.3 +/-    0.83       8.5 +/-    0.83  0.020 / 0.040