PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-01:27:50
G01     309.2          31.5                8.8 +/-    2.01      15.0 +/-    2.01  0.060 / 0.060
G10     102.8          42.9                7.9 +/-    1.05      11.0 +/-    1.05  0.040 / 0.070
G11     283.5          29.1                9.6 +/-    1.03      17.1 +/-    1.03  0.100 / 0.120
G14     354.5          67.6                6.5 +/-    0.62       7.0 +/-    0.62  0.070 / 0.100
G18     115.4          16.4                7.5 +/-    1.37      18.0 +/-    1.37  0.090 / 0.130
G22     308.3          23.0                8.5 +/-    1.81      17.4 +/-    1.81  0.090 / 0.130
G25     82.3           15.5                8.1 +/-    2.07      19.8 +/-    2.07  0.030 / 0.040
G31     173.5          59.7               10.5 +/-    0.69      11.9 +/-    0.69  0.040 / 0.030
G32     28.8           57.0                7.9 +/-    2.55       9.2 +/-    2.55  0.080 / 0.190