PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/19-22:27:50
G01     296.5          38.5                8.9 +/-    0.61      13.3 +/-    0.61  0.050 / 0.100
G03     310.0          12.5                7.3 +/-    1.71      19.3 +/-    1.71  0.050 / 0.100
G10     115.7          33.1               11.3 +/-    0.68      18.5 +/-    0.68  0.080 / 0.080
G11     270.2          27.6                8.0 +/-    1.05      14.8 +/-    1.05  0.070 / 0.080
G14     18.0           61.1                8.1 +/-    0.76       9.1 +/-    0.76  0.020 / 0.030
G22     312.5          33.4                7.6 +/-    1.95      12.5 +/-    1.95  0.030 / 0.030
G25     70.8           18.4                8.8 +/-    1.25      20.0 +/-    1.25  0.050 / 0.120
G31     160.7          73.9                9.9 +/-    0.90      10.3 +/-    0.90  0.060 / 0.140
G32     45.0           46.7                7.6 +/-    0.42      10.0 +/-    0.42  0.040 / 0.050