PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-19:28:10
G02     53.3           38.5               20.9 +/-    0.71      31.1 +/-    0.71  0.150 / 0.380
G05     81.8           70.7               21.7 +/-    0.51      22.8 +/-    0.51  0.170 / 0.280
G12     186.6          39.9               20.4 +/-    1.67      29.8 +/-    1.67  0.050 / 0.080
G13     135.2          10.4               -3.1 +/-   33.78      -8.6 +/-   33.78  0.050 / 0.070
G20     204.0          53.2               22.2 +/-    1.59      27.0 +/-    1.59  0.040 / 0.050
G21     265.8          13.8               19.7 +/-    2.21      50.4 +/-    2.21  0.040 / 0.060
G25     241.4          55.8               19.5 +/-    0.55      23.0 +/-    0.55  0.040 / 0.080
G29     326.1          51.3               19.1 +/-    0.88      23.7 +/-    0.88  0.060 / 0.070