PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/19-23:27:40
G01     318.7          18.4                9.6 +/-    2.18      21.9 +/-    2.18  0.040 / 0.050
G08     255.8          12.9               10.4 +/-    1.67      27.3 +/-    1.67  0.030 / 0.030
G10     79.7           53.7                9.8 +/-    1.06      11.8 +/-    1.06  0.040 / 0.080
G11     302.0          24.1                9.3 +/-    3.30      18.5 +/-    3.30  0.050 / 0.070
G14     302.2          71.3                9.2 +/-    0.78       9.7 +/-    0.78  0.050 / 0.030
G18     102.4          28.3               10.4 +/-    1.57      18.9 +/-    1.57  0.040 / 0.030
G31     179.4          39.1               13.8 +/-    1.48      20.3 +/-    1.48  0.050 / 0.050
G32     1.0            68.7                9.4 +/-    0.91      10.0 +/-    0.91  0.050 / 0.060