PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/23-02:12:40
G01     302.4          36.0                7.1 +/-    1.10      11.0 +/-    1.10  0.070 / 0.160
G10     110.6          37.5                6.4 +/-    0.84       9.7 +/-    0.84  0.080 / 0.140
G11     274.8          29.0                8.4 +/-    2.02      15.0 +/-    2.02  0.050 / 0.100
G14     10.1           63.8                5.6 +/-    0.72       6.1 +/-    0.72  0.090 / 0.090
G18     120.1          11.0                5.7 +/-    1.83      15.4 +/-    1.83  0.030 / 0.060
G22     311.0          29.0                4.8 +/-    1.36       8.6 +/-    1.36  0.030 / 0.050
G25     74.5           17.2                6.3 +/-    1.05      14.8 +/-    1.05  0.080 / 0.250
G31     167.3          68.4                7.0 +/-    0.94       7.5 +/-    0.94  0.080 / 0.220
G32     37.9           51.5                5.5 +/-    0.40       6.8 +/-    0.40  0.030 / 0.050