PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/18-21:13:00
G01     320.3          13.7                9.0 +/-    2.42      23.0 +/-    2.42  0.090 / 0.300
G08     261.4          15.6               11.0 +/-    1.45      27.0 +/-    1.45  0.140 / 0.380
G10     70.7           56.5                8.5 +/-    0.86      10.0 +/-    0.86  0.060 / 0.110
G11     307.3          20.7               10.7 +/-    4.48      23.2 +/-    4.48  0.070 / 0.080
G14     283.5          69.5               10.5 +/-    0.54      11.1 +/-    0.54  0.090 / 0.270
G18     97.8           31.5               11.3 +/-    0.74      19.2 +/-    0.74  0.120 / 0.220
G27     226.4          11.6               10.4 +/-    3.41      28.2 +/-    3.41  0.030 / 0.030
G31     179.6          33.9               13.3 +/-    1.25      21.6 +/-    1.25  0.030 / 0.030
G32     350.4          71.6                9.7 +/-    0.50      10.2 +/-    0.50  0.060 / 0.050