PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/30-22:27:40
G01     320.5          12.7                9.6 +/-    2.71      25.3 +/-    2.71  0.110 / 0.430
G08     262.1          16.1               12.4 +/-    2.63      30.0 +/-    2.63  0.090 / 0.400
G10     68.4           57.1               10.6 +/-    0.63      12.4 +/-    0.63  0.160 / 0.290
G11     307.9          20.4               10.8 +/-    1.51      23.6 +/-    1.51  0.120 / 0.260
G14     280.7          69.3               12.6 +/-    0.42      13.4 +/-    0.42  0.060 / 0.100
G18     96.5           32.6               11.4 +/-    0.63      18.9 +/-    0.63  0.050 / 0.100
G27     227.2          12.4               13.8 +/-    3.22      36.6 +/-    3.22  0.020 / 0.030
G31     180.6          31.7               13.6 +/-    1.56      23.0 +/-    1.56  0.030 / 0.030
G32     344.4          72.4               11.3 +/-    0.39      11.8 +/-    0.39  0.050 / 0.060