PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/17-02:12:40
G01     311.9          29.0                7.8 +/-    1.97      14.0 +/-    1.97  0.130 / 0.250
G10     98.5           45.5                8.3 +/-    0.79      11.1 +/-    0.79  0.100 / 0.240
G11     287.4          28.8                8.0 +/-    1.90      14.4 +/-    1.90  0.100 / 0.150
G14     345.6          69.2                8.1 +/-    0.79       8.6 +/-    0.79  0.090 / 0.130
G18     112.7          19.4                8.4 +/-    1.02      18.8 +/-    1.02  0.030 / 0.040
G22     306.9          20.3                8.4 +/-    1.59      18.3 +/-    1.59  0.030 / 0.040
G25     85.4           14.2                8.2 +/-    1.54      20.8 +/-    1.54  0.030 / 0.040
G31     174.2          56.1               11.7 +/-    0.76      13.8 +/-    0.76  0.050 / 0.040
G32     24.7           59.2                7.7 +/-    0.18       8.8 +/-    0.18  0.060 / 0.170